About

PETAPORON is a minimalistic piano roll sequencer. Compose a song and export it to mp3! Shortcuts: space: start/stop playback left arrow: navigate one bar forward right: navigate one bar back alt+left: go to the start of the song backspace / delete: delete selection cmd+z: undo shift+cmd+z: redo cmd+x: cut selection cmd+c: copy selection cmd+v: paste cmd+s: save song data to a text file (to reload it: drag&drop this file on Petaporon) cmd+e: export song to mp3 cmd+n: new song