It seems like you have created something incredible, but the UI is impossible to use. I have no idea how to use it, even after watching all of your YouTube tutorials. I even went to the manual on the site, but there is no information on how to use anything. I don’t know what any of the side buttons to on the UI, I’ve clicked every button, but I can’t seem to get rid of the song editor. The buttons don’t really do what I think they would do. I am overall, just very confused. It seems like a revolutionary idea though to have all chord progressions in one page, and it seems like you put in a lot of work into this. But I think not many people understand what this is… If the UI can be better explained, and if you can explain to beginners what this is, this would be much better. I know quite a bit of theory, but I still do not understand which is a shame. I really would like to understand it.

This ought to be the killer of clunky-sounding old iReal Pro, but its poor design choices and ham-handed execution make it almost unusable. I bought it to use on an iPhone, and on that platform at least, the UI elements are far too small and fiddly to use. Perhaps a fairer trial would involve a tablet or a laptop, but nowhere did I see a 'Not Suitable for iPhone' warning. MTHP crashed several times in the course of ordinary use, losing the work I was attempting. The existing library of tunes is partially pay-walled off, you cannot edit the ones that the platform does provide, and there is no reservoir of freely available ones to download. This kneecaps the app's usefulness. MTHP is a cathedral, when it ought to be a bazaar. It certainly does a better job than iReal Pro of being a rhythm section — far better. And its scope and ambition is also far greater than iReal Pro's. I believe, however, that it’s as an alternative to iRP that most users will approach MTHP, and they will be frustrated by it. MTHP's developers must first make their app far more usable along those lines, and make its other capabilities secondary to that. Getting rid of its wrong-headed approach to repertoire/catalogue would be essential. I gave MTHP two stars instead of one, only in recognition of what it's *trying* to do.

This is such a revolutionary concept for understanding harmony, substitutions, and more. It’s just that it really requires you to study the guide videos because there are some design choices that make using the app harder than it needs to be, with lots of icons that are not explained. This is an advanced tool to be sure, that well reward practice and extended use.

Not as easy to use as iReal pro. Repeat signs are non functional in ios as far as I can tell. Contacted support several times, no solutions or tutorial were offered. The map is fun to use and the playback styles are cool.

Crashes on numerous occasions in song mode particularly. Gmail of mDecks is not valide and there’s no way to get support from the developper(s) on the web site. Hope that this post will get some attention from them.

Won’t save settings, have to tap tiny buttons numerous times and fiddle around aiming your finger to transpose, set loop points, press play, and do the most basic functions. Very slow and inefficient compared to iReal. If you are a jazz musician you will have to pay for the app a second time to get the standards library. Tonnes of totally useless features and awful tiny graphic design. Even loading a tune is a hassle with the several tiny button pushes it takes just to do that. Extremely disappointed.

I’m not able to find Dø7 in the chords mapping. The strangest is that my review doesn’t matter for the global review, which remains at 5 starts.

I have a masters in composition , and BA in piano performance / music theory. I am able to distinguish gimmicks from valuable tools. It is clear the développer is a musician and theorist. This is not a gimmick. I am considered a Pessimist and rarely recommend anything that isn’t absolutely ground breaking. This is so many things. First off, the only comprehensive digital aid to help learn harmony showing how chords move in all genres. It is also a fantastic tool for backing tracks. It is a phenomenal tool for generating your own personal chord progressions in a quick way using built in algorithms to practice different concepts. It provides voicings , scales …. I have seen them all. Every app. This is the only one that made me reconsider developing my own a few years ago. It is updated very often and altho it can still use a few tweaks, it is just not comparable to any of the apps that claim to do the same.

To the reviewer above....... it may be a little pricey, but musicians who use this, it’s well-worth the cost. A lot of time has gone into producing such a fine program.

The barebones app is $25, but it’s roughly $80 extra to actually get all the apps features. Complete rip-off.