Have you tried the eventide micropitch one I actually really like it compared to others in the category but Id bet the code and consequent sounds in both the micropitch and h910 are similar if not the same at times. With the H910 plug-in you can easily use MIDI to control pitch and harmonization in real-time. quote Just realised that Turn2on’s Drop’n’lift Does the same.

Envelope Follower An envelope follower has also been implemented in this latest release. In 1974, Agnello conceived of a harmony processor but had little idea that he was creating a classic tool for the most successful artists of their generation. Jimmy Page was an early fan, incorporating the H910 into his guitar rack, and, similarly, Frank Zappa employed it heavily as part of his guitar sound. Eventide Harmonizer H910 Octave-down pedals relied on an op-amp comparator to 'convert' the incoming signal into a square wave, whose frequency was then halved and/or quartered using CMOS flip-flops (like the 4013 chips found in the MXR Blue Box and Boss OC-2 pedals). Producer Tony Visconti used the H910 to achieve the now-legendary snare sound on David Bowie’s Young Americans, and Tony Platt did likewise on AC/DC’s Back in Black.

Songs with eventide h910 harmonizer