I went through a lot of harmonizers through the years. I started with the Digitech VHM5 back in 1992 to my current Roland VP-770 and TC Helicon Harmony M pedal.

I used the VP-550 for a few years and loved it. The 770 came out and I upgraded because of the extra sounds and audio playing option. I use it in my duo "The Shueys" as a vocal back up to some 50's 60's songs to make a more "acapella" and "doo-wap" moment in our act. A song example is... "Will You Still Love Me Tomorrow." Plus, I take a few moments to explain what a vocoder is to the crowd. It's also fun to use the vocoder for some solos and I will also use the brass on it for a solo instrument.

In the studio, I use it to create choir parts for some projects. I'll record a midi track of each part and then sing the each part on it's own to record 4 part harmony. I faked out a composer friend of mine. He has me record his new work so he can hear it. He asked me where I got the choir from?? Made my investment well worth it!!

I thought the audio playing would be like my sonic cell... insert a USB with .aiff files on it, and play it directly from it. It's not what I thought it would be... cool feature, but I don't use it much. In my act, I run tracks from older synths until I redo them with the new board. Songs from my O1/wfd and Triton Studio got converted to audio and I play the tracks from one of the following... iPod Touch - Sonar VS-100 - Roland Sonic Cell - CD - or from my newly acquired Yamaha Motif XF's audio player.

Thanks for Asking!!