diff --git a/src/reskit/soundtrack.rs b/src/reskit/soundtrack.rs
index ab77793..39342e8 100644
--- a/src/reskit/soundtrack.rs
+++ b/src/reskit/soundtrack.rs
@@ -1,4 +1,4 @@
-use std::{error::Error, fs::File, io::Read, str::from_utf8, slice::Iter, convert::TryInto};
+use std::{error::Error, fs::File, io::Read, str::from_utf8, slice::Iter, convert::TryInto, collections::HashMap};
 use flate2::read::ZlibDecoder;
 
 const DMF_MAGIC_NUMBER: &'static str = ".DelekDefleMask.";
@@ -6,6 +6,12 @@ const DMF_SUPPORTED_VERSION: u8 = 0x18;
 const DMF_MD: u8 = 0x02;
 const DMF_MD_ENHANCED_CH3: u8 = 0x42;
 
+#[derive(Debug)]
+pub enum Either< Type1, Type2 > {
+    Type1( Type1 ),
+    Type2( Type2 )
+}
+
 #[derive(Debug)]
 pub enum FrameMode {
     Ntsc,
@@ -13,6 +19,58 @@ pub enum FrameMode {
     Custom( u8, u8, u8 )
 }
 
+#[derive(Debug, Default)]
+pub struct FmOperator {
+    am: u8,
+    ar: u8,
+    dr: u8,
+    mult: u8,
+    rr: u8,
+    sl: u8,
+    tl: u8,
+    dt2: u8,
+    rs: u8,
+    dt: i8,
+    d2r: u8,
+    ssg_mode: u8
+}
+
+#[derive(Debug)]
+pub struct FmSettings {
+    alg: u8,
+    fb: u8,
+    fms: u8,
+    ams: u8,
+    operators: [FmOperator; 4]
+}
+
+#[derive(Debug)]
+pub struct PsgEnvelope {
+    envelope: Either<Vec<u32>, Vec<i32>>,
+    loop_at: Option<usize>,
+    settings: HashMap<&'static str, bool>
+}
+
+#[derive(Debug)]
+pub struct PsgSettings {
+    volume: PsgEnvelope,
+    arpeggio: PsgEnvelope,
+    noise: PsgEnvelope,
+    wavetable: PsgEnvelope
+}
+
+#[derive(Debug)]
+pub enum InstrumentType {
+    Fm( FmSettings ),
+    Psg( PsgSettings )
+}
+
+#[derive(Debug)]
+pub struct Instrument {
+    name: String,
+    instrument_type: InstrumentType
+}
+
 pub struct DmfModule {
     platform: u8,
     version: u8,
@@ -21,7 +79,8 @@ pub struct DmfModule {
     speed_b: u8,
     frame_mode: FrameMode,
     rows_per_pattern: u32,
-    patterns: Vec<Vec<u8>>
+    pattern_matrix: Vec<Vec<u8>>,
+    instruments: Vec<Instrument>
 }
 
 fn get_string( bytes: &mut Iter<'_, u8>, take: usize ) -> Result<String, Box<dyn Error>> {
@@ -38,6 +97,12 @@ fn get_u8( bytes: &mut Iter<'_, u8> ) -> Result<u8, Box<dyn Error>> {
     Ok( took )
 }
 
+fn get_i8( bytes: &mut Iter<'_, u8> ) -> Result<i8, Box<dyn Error>> {
+    let took = bytes.take( 1 ).cloned().next().ok_or( "invalid file: expected 1 byte" )?;
+
+    Ok( took as i8 )
+}
+
 fn get_u32( bytes: &mut Iter<'_, u8> ) -> Result<u32, Box<dyn Error>> {
     let took = bytes.take( 4 );
     let took: Vec<u8> = took.cloned().collect();
@@ -46,8 +111,16 @@ fn get_u32( bytes: &mut Iter<'_, u8> ) -> Result<u32, Box<dyn Error>> {
     Ok( took )
 }
 
+fn get_i32( bytes: &mut Iter<'_, u8> ) -> Result<i32, Box<dyn Error>> {
+    let took = bytes.take( 4 );
+    let took: Vec<u8> = took.cloned().collect();
+    let took = i32::from_le_bytes( took[0..4].try_into()? );
+
+    Ok( took )
+}
+
 fn skip( bytes: &mut Iter<'_, u8>, by: usize ) {
-    for i in 0..by {
+    for _i in 0..by {
         bytes.next();
     }
 }
@@ -139,16 +212,16 @@ impl DmfModule {
             13
         };
 
-        let mut patterns: Vec<Vec<u8>> = vec![vec![0; system_total_channels]; patterns_count.into()];
+        let mut pattern_matrix: Vec<Vec<u8>> = vec![vec![0; system_total_channels]; patterns_count.into()];
         for channel in 0..system_total_channels {
             for pattern in 0..patterns_count {
                 let channel: usize = channel.into();
                 let pattern: usize = pattern.into();
-                patterns[ pattern ][ channel ] = get_u8( bytes.by_ref() )?;
+                pattern_matrix[ pattern ][ channel ] = get_u8( bytes.by_ref() )?;
             }
         }
 
-        for pattern in &patterns {
+        for pattern in &pattern_matrix {
             for channel in pattern {
                 print!( "{:#04X?} ", channel );
             }
@@ -157,10 +230,296 @@ impl DmfModule {
 
         print!( "\n" );
 
+        let mut instruments: Vec<Instrument> = Vec::new();
+        let instrument_count = get_u8( bytes.by_ref() )?;
+
+        println!( "Instruments:\t{}", instrument_count );
+
+        for i in 0..instrument_count {
+            let name_len = get_u8( bytes.by_ref() )?;
+            let name = get_string( bytes.by_ref(), name_len.into() )?;
+
+            println!( "Instrument {}:\t{}", i, name );
+
+            let mode = get_u8( bytes.by_ref() )?;
+            let instrument_type = match mode {
+                0 => {
+                    println!( "Psg Instrument" );
+
+                    // Volume envelope
+                    let volume = {
+                        let size = get_u8( bytes.by_ref() )?;
+                        let mut envelope: Vec<u32> = Vec::new();
+
+                        for _i in 0..size {
+                            envelope.push( get_u32( bytes.by_ref() )? );
+                        }
+
+                        let loop_at: Option<usize> = if size > 0 {
+                            let loop_position = get_i8( bytes.by_ref() )?;
+                            if loop_position != -1 {
+                                Some( loop_position.try_into()? )
+                            } else {
+                                None
+                            }
+                        } else {
+                            None
+                        };
+
+                        println!( "Volume Envelope Size:\t{}", envelope.len() );
+
+                        PsgEnvelope {
+                            envelope: Either::Type1( envelope ),
+                            loop_at,
+                            settings: HashMap::new()
+                        }
+                    };
+
+                    // Arpeggio envelope
+                    let arpeggio = {
+                        let size = get_u8( bytes.by_ref() )?;
+                        let mut envelope: Vec<i32> = Vec::new();
+
+                        for _i in 0..size {
+                            envelope.push( get_i32( bytes.by_ref() )? - 12 );
+                        }
+
+                        let loop_at: Option<usize> = if size > 0 {
+                            let loop_position = get_i8( bytes.by_ref() )?;
+                            if loop_position != -1 {
+                                Some( loop_position.try_into()? )
+                            } else {
+                                None
+                            }
+                        } else {
+                            None
+                        };
+
+                        let settings = HashMap::from([
+                            ( "arpeggio_macro_fixed", get_u8( bytes.by_ref() )? == 1 )
+                        ]);
+
+                        println!( "Arpeggio Envelope Size:\t{}", envelope.len() );
+                        println!( "Arpeggio Macro Fixed:\t{}", settings[ "arpeggio_macro_fixed" ] );
+
+                        PsgEnvelope {
+                            envelope: Either::Type2( envelope ),
+                            loop_at,
+                            settings
+                        }
+                    };
+
+                    // Noise envelope
+                    let noise = {
+                        let size = get_u8( bytes.by_ref() )?;
+                        let mut envelope: Vec<u32> = Vec::new();
+
+                        for _i in 0..size {
+                            envelope.push( get_u32( bytes.by_ref() )? );
+                        }
+
+                        let loop_at: Option<usize> = if size > 0 {
+                            let loop_position = get_i8( bytes.by_ref() )?;
+                            if loop_position != -1 {
+                                Some( loop_position.try_into()? )
+                            } else {
+                                None
+                            }
+                        } else {
+                            None
+                        };
+
+                        println!( "Noise Envelope Size:\t{}", envelope.len() );
+
+                        PsgEnvelope {
+                            envelope: Either::Type1( envelope ),
+                            loop_at,
+                            settings: HashMap::new()
+                        }
+                    };
+
+                    // Wavetable envelope
+                    let wavetable = {
+                        let size = get_u8( bytes.by_ref() )?;
+                        let mut envelope: Vec<u32> = Vec::new();
+
+                        for _i in 0..size {
+                            envelope.push( get_u32( bytes.by_ref() )? );
+                        }
+
+                        let loop_at: Option<usize> = if size > 0 {
+                            let loop_position = get_i8( bytes.by_ref() )?;
+                            if loop_position != -1 {
+                                Some( loop_position.try_into()? )
+                            } else {
+                                None
+                            }
+                        } else {
+                            None
+                        };
+
+                        println!( "WavTbl Envelope Size:\t{}\n", envelope.len() );
+
+                        PsgEnvelope {
+                            envelope: Either::Type1( envelope ),
+                            loop_at,
+                            settings: HashMap::new()
+                        }
+                    };
+
+                    InstrumentType::Psg( PsgSettings { volume, arpeggio, noise, wavetable } )
+                },
+                1 => {
+                    println!( "Fm Instrument" );
+
+                    let alg = get_u8( bytes.by_ref() )?;
+                    let fb = get_u8( bytes.by_ref() )?;
+                    let fms = get_u8( bytes.by_ref() )?;
+                    let ams = get_u8( bytes.by_ref() )?;
+
+                    println!( "Alg:\t{}", alg );
+                    println!( "Fb:\t{}", fb );
+                    println!( "FMS:\t{}", fms );
+                    println!( "AMS:\t{}", ams );
+
+                    let mut operators: [FmOperator; 4] = [
+                        FmOperator::default(),
+                        FmOperator::default(),
+                        FmOperator::default(),
+                        FmOperator::default()
+                    ];
+
+                    // Operator 1
+                    {
+                        operators[ 0 ].am = get_u8( bytes.by_ref() )?;
+                        operators[ 0 ].ar = get_u8( bytes.by_ref() )?;
+                        operators[ 0 ].dr = get_u8( bytes.by_ref() )?;
+                        operators[ 0 ].mult = get_u8( bytes.by_ref() )?;
+                        operators[ 0 ].rr = get_u8( bytes.by_ref() )?;
+                        operators[ 0 ].sl = get_u8( bytes.by_ref() )?;
+                        operators[ 0 ].tl = get_u8( bytes.by_ref() )?;
+                        operators[ 0 ].dt2 = get_u8( bytes.by_ref() )?;
+                        operators[ 0 ].rs = get_u8( bytes.by_ref() )?;
+                        operators[ 0 ].dt = get_i8( bytes.by_ref() )? - 3;
+                        operators[ 0 ].d2r = get_u8( bytes.by_ref() )?;
+                        operators[ 0 ].ssg_mode = get_u8( bytes.by_ref() )?;
+
+                        println!( "Op 1 AM:\t{}", operators[ 0 ].am );
+                        println!( "Op 1 AR:\t{}", operators[ 0 ].ar );
+                        println!( "Op 1 DR:\t{}", operators[ 0 ].dr );
+                        println!( "Op 1 MULT:\t{}", operators[ 0 ].mult );
+                        println!( "Op 1 RR:\t{}", operators[ 0 ].rr );
+                        println!( "Op 1 SL:\t{}", operators[ 0 ].sl );
+                        println!( "Op 1 TL:\t{}", operators[ 0 ].tl );
+                        println!( "Op 1 DT2:\t{}", operators[ 0 ].dt2 );
+                        println!( "Op 1 RS:\t{}", operators[ 0 ].rs );
+                        println!( "Op 1 DT:\t{}", operators[ 0 ].dt );
+                        println!( "Op 1 D2R:\t{}", operators[ 0 ].d2r );
+                        println!( "Op 1 SSG_MODE:\t{}\n", operators[ 0 ].ssg_mode );
+                    }
+
+                    // Operator 3
+                    {
+                        operators[ 2 ].am = get_u8( bytes.by_ref() )?;
+                        operators[ 2 ].ar = get_u8( bytes.by_ref() )?;
+                        operators[ 2 ].dr = get_u8( bytes.by_ref() )?;
+                        operators[ 2 ].mult = get_u8( bytes.by_ref() )?;
+                        operators[ 2 ].rr = get_u8( bytes.by_ref() )?;
+                        operators[ 2 ].sl = get_u8( bytes.by_ref() )?;
+                        operators[ 2 ].tl = get_u8( bytes.by_ref() )?;
+                        operators[ 2 ].dt2 = get_u8( bytes.by_ref() )?;
+                        operators[ 2 ].rs = get_u8( bytes.by_ref() )?;
+                        operators[ 2 ].dt = get_i8( bytes.by_ref() )? - 3;
+                        operators[ 2 ].d2r = get_u8( bytes.by_ref() )?;
+                        operators[ 2 ].ssg_mode = get_u8( bytes.by_ref() )?;
+
+                        println!( "Op 3 AM:\t{}", operators[ 2 ].am );
+                        println!( "Op 3 AR:\t{}", operators[ 2 ].ar );
+                        println!( "Op 3 DR:\t{}", operators[ 2 ].dr );
+                        println!( "Op 3 MULT:\t{}", operators[ 2 ].mult );
+                        println!( "Op 3 RR:\t{}", operators[ 2 ].rr );
+                        println!( "Op 3 SL:\t{}", operators[ 2 ].sl );
+                        println!( "Op 3 TL:\t{}", operators[ 2 ].tl );
+                        println!( "Op 3 DT2:\t{}", operators[ 2 ].dt2 );
+                        println!( "Op 3 RS:\t{}", operators[ 2 ].rs );
+                        println!( "Op 3 DT:\t{}", operators[ 2 ].dt );
+                        println!( "Op 3 D2R:\t{}", operators[ 2 ].d2r );
+                        println!( "Op 3 SSG_MODE:\t{}\n", operators[ 2 ].ssg_mode );
+                    }
+
+                    // Operator 2
+                    {
+                        operators[ 1 ].am = get_u8( bytes.by_ref() )?;
+                        operators[ 1 ].ar = get_u8( bytes.by_ref() )?;
+                        operators[ 1 ].dr = get_u8( bytes.by_ref() )?;
+                        operators[ 1 ].mult = get_u8( bytes.by_ref() )?;
+                        operators[ 1 ].rr = get_u8( bytes.by_ref() )?;
+                        operators[ 1 ].sl = get_u8( bytes.by_ref() )?;
+                        operators[ 1 ].tl = get_u8( bytes.by_ref() )?;
+                        operators[ 1 ].dt2 = get_u8( bytes.by_ref() )?;
+                        operators[ 1 ].rs = get_u8( bytes.by_ref() )?;
+                        operators[ 1 ].dt = get_i8( bytes.by_ref() )? - 3;
+                        operators[ 1 ].d2r = get_u8( bytes.by_ref() )?;
+                        operators[ 1 ].ssg_mode = get_u8( bytes.by_ref() )?;
+
+                        println!( "Op 2 AM:\t{}", operators[ 1 ].am );
+                        println!( "Op 2 AR:\t{}", operators[ 1 ].ar );
+                        println!( "Op 2 DR:\t{}", operators[ 1 ].dr );
+                        println!( "Op 2 MULT:\t{}", operators[ 1 ].mult );
+                        println!( "Op 2 RR:\t{}", operators[ 1 ].rr );
+                        println!( "Op 2 SL:\t{}", operators[ 1 ].sl );
+                        println!( "Op 2 TL:\t{}", operators[ 1 ].tl );
+                        println!( "Op 2 DT2:\t{}", operators[ 1 ].dt2 );
+                        println!( "Op 2 RS:\t{}", operators[ 1 ].rs );
+                        println!( "Op 2 DT:\t{}", operators[ 1 ].dt );
+                        println!( "Op 2 D2R:\t{}", operators[ 1 ].d2r );
+                        println!( "Op 2 SSG_MODE:\t{}\n", operators[ 1 ].ssg_mode );
+                    }
+
+                    // Operator 4
+                    {
+                        operators[ 3 ].am = get_u8( bytes.by_ref() )?;
+                        operators[ 3 ].ar = get_u8( bytes.by_ref() )?;
+                        operators[ 3 ].dr = get_u8( bytes.by_ref() )?;
+                        operators[ 3 ].mult = get_u8( bytes.by_ref() )?;
+                        operators[ 3 ].rr = get_u8( bytes.by_ref() )?;
+                        operators[ 3 ].sl = get_u8( bytes.by_ref() )?;
+                        operators[ 3 ].tl = get_u8( bytes.by_ref() )?;
+                        operators[ 3 ].dt2 = get_u8( bytes.by_ref() )?;
+                        operators[ 3 ].rs = get_u8( bytes.by_ref() )?;
+                        operators[ 3 ].dt = get_i8( bytes.by_ref() )? - 3;
+                        operators[ 3 ].d2r = get_u8( bytes.by_ref() )?;
+                        operators[ 3 ].ssg_mode = get_u8( bytes.by_ref() )?;
+
+                        println!( "Op 4 AM:\t{}", operators[ 3 ].am );
+                        println!( "Op 4 AR:\t{}", operators[ 3 ].ar );
+                        println!( "Op 4 DR:\t{}", operators[ 3 ].dr );
+                        println!( "Op 4 MULT:\t{}", operators[ 3 ].mult );
+                        println!( "Op 4 RR:\t{}", operators[ 3 ].rr );
+                        println!( "Op 4 SL:\t{}", operators[ 3 ].sl );
+                        println!( "Op 4 TL:\t{}", operators[ 3 ].tl );
+                        println!( "Op 4 DT2:\t{}", operators[ 3 ].dt2 );
+                        println!( "Op 4 RS:\t{}", operators[ 3 ].rs );
+                        println!( "Op 4 DT:\t{}", operators[ 3 ].dt );
+                        println!( "Op 4 D2R:\t{}", operators[ 3 ].d2r );
+                        println!( "Op 4 SSG_MODE:\t{}\n", operators[ 3 ].ssg_mode );
+                    }
+
+                    InstrumentType::Fm( FmSettings { alg, fb, fms, ams, operators } )
+                },
+                _ => return Err( format!( "invalid file: invalid instrument mode {}", mode ) )?
+            };
+
+            instruments.push( Instrument { name, instrument_type } );
+        }
+
         // TODO !!
 
         Ok(
-            DmfModule { platform, version, time_base, speed_a, speed_b, frame_mode, rows_per_pattern, patterns }
+            DmfModule {
+                platform, version, time_base, speed_a, speed_b, frame_mode, rows_per_pattern,
+                pattern_matrix, instruments
+            }
          )
     }