Guitarix - Guitarix is a simple Linux Rock Guitar Amplifier for https://alternativeto.
AudioRetoucher - AudioRetoucher is a tool for analyzing music, changing tempo and pitch in real time
Rakarrack - Rakarrack is a richly featured multi-effects processor emulating a guitar effects pedalboard.
Chordify - Chordify turns any music or song (YouTube, Deezer, SoundCloud, MP3) into chords.
ToneLib GFX - The perfect custom tone with a complete guitar studio in your computer
Guitaa.com - Turn ANY song into chords, play along with interactive chords and diagram, transpose, loop, tempo control.