Upgrade Manual

Appendix A: "Audio Plugins"86
Fattening:
Fatten a track by slightly detuning copies of the track. Fattening
can be effective on many instruments, including vocal, solo instruments,
bass, and snare drum.
Flange and Chorus are also useful for fattening, but Flange and Chorus has a
vibrato effect.
Pitch Shift fattening doesn't introduce vibrato, and it also slightly disturbs the
rhythm of the clone tracks, which can enhance the doubled effect.
Transposing:
Pitch shift by semitones to change the key of a track.
Transposing uses larger shift amounts than the previous applications. Audio
quality can suffer with large pitch shifts— if possible, avoid large
transpositions.
Monophonic instruments usually transpose better than polyphonic tracks.
Some instruments transpose better than others.
Bass, horn, or lead guitar shows less degradation than vocal, piano, or full
mixes.
You can transpose pre-recorded Karaoke tracks to match a vocalist's range.
If you have a MIDI sequence in E, and want to make it easy on the sax
soloist you could temporarily transpose the MIDI to Eb or F. After recording
the sax, transpose the MIDI back to E, and do a 1 semitone audio pitch shift
on the sax track to bring the solo into the proper key.
Harmonizing:
Harmonizing is possible, but can be a lot of work.
Harmonizing is most practical on melodically simple parts. It can help to pick
repeating parts like hooks and chorus melodies, so you can re-use the
harmonized part in several locations in a song, rather than laboriously
harmonizing every note in every verse.
Make a clone of the track. Open the clone in an Audio Edit window. Select
and pitch shift each note.
To make a third-interval harmony line, different notes in the melody need to
be transposed a minor third (+3 semitones), a major third (+4 semitones) or a
fourth (+5 semitones). It is a lot of work. Best to avoid this task on busy
bebop leads!!