Welcome to the Forums DaClark.

If the music phrase is MIDI format, I'm pretty sure it just changes the notes that make up the chord. That's fairly straightforward and easy to do.

If the music phrase is RealTracks (Sampled Audio Phrases), it's my understanding that it uses Time Stretching and Pitch Transposition to change the Chord (song). So if, for example, you have a RealTrack with musical phrase in Eb and transpose it to Ab, Pitch Transposition is used to change the song.

Others might chip in with more accurate detail.


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