I've been doing some experimentation with this and looking at the research and have come up with a different tone sequence. It's attached below. I used it yesterday for a short time and again this morning and it seems to thin out and reduce my tinnitus.
The Theory (briefly and completely an experiment and very theoretical):
ANM uses 4 tones around your central tinnitus tone to reset neurons that are mis-firing. In reality most of us have several tones, or a broad noise, and can experience different noises at times.
If this 'pure tone' stimulation is making the neurons fire as they are supposed to then it should theoretically work if we stimulate a broad range of them across our hearing, keeping enough separation to allow different neurons to fire (I think these tones are from just under 100Hz up to around 10,000Hz).
I've created a random pattern of tones on musical notes rather than using pure Hertz values as I think that our perception is well tuned to the Western music scale so will respond better. There are 5 patterns in total with the tones spaced a 4th apart (5 semitones), each pattern is pitch shifted 1 semitone so that by the end of the 5 patterns all notes on the musical scale have been played. The patterns are randomised and repeated 4 times each.
The sequence should be listened to on a loop, on headphones or earphones, reasonable quality so you can hear all tones. Volume should be relatively low, enough to be able to hear them all comfortably and where you can forget they are playing after listening for a while. Don't focus on the tones, listen to them while doing something else (work, reading etc)
The only thing with this is that it isn't to your personal audio profile, if you have a moderate or worse hearing loss in a region then you may not hear all the tones equally. If you do struggle to hear them all don't listen to it loud to try this out as that could be damaging to your hearing.