you must copy entire pattern channel 0-to 63 "Notes part" 3bytes; and then the converter working well;
Don't copy 8- 16 or 32 notes... but 64
*** not understand sorry ///
04 and 6 bytes ;
04 mean position 64 on the tracker
if you are in position :
18 this value is 31 ... 0 to 15+(3 in hex) every 16 notes the second byte is increased by 1;
04 nv00io : note+vol+fx+instnumber+octave;