I tried this project
http://radiokot.ru/konkurs/77/Hex file is played good on 16Mhz (on clean dip attiny85 with RC osclilator) but I havent skills for conversion for arduino IDE
Only one error
Digispark_MidiPlayer.cpp.o: In function `playNextMelody()':
D:\_sukromne\DigisparkArduino-Win32\Digispark-Arduino-1.0.4/Digispark_MidiPlayer.ino:93: undefined reference to `Player_StartMelody(TMelody const*, unsigned int)'
