Melodyne 4.1

Melodyne is an audio editing tool which lets you work with musical notes, instead of audio waveforms. You don't just see where the music gets louder or quieter but also where notes begin and end and at what pitch they lie. You can modify each note and thereby influence directly the intonation,phrasing and dynamics. You can use this program not only with vocals and monophonic instruments but also with polyphonic instruments such as pianos and guitars.