I know this thread is old but i have recently needed to detune for a new song in my band , so I started to mess around with the pitch glide on the HD500x, the first time I tried it the thing was rubbish , the tracking was awful , then I tried it again with a few different settings , gotta say its pretty damn good , the tracking is almost bang on and chords work really well, the song I am using it on is Queen , Find me somebody to love , the chords are all over the place and it sounds really good, the settings are , mix100% then detune to -1.0 for half a step ,