Midi Opener - Review
1) Give us an option to build a Library structure with unlimited nested folders with lengthy naming conventions AND allow us to populate folders with pointers (NOT the actual Midi files) TO the Apple FILES app (like your folder that already does this). So, we get the juke box effect without having to hunt down and import the actual files every time.
2) Make this app as both "Stand alone" AND as an AUV3 plug-in, that can be hosted by ios "Hosts" like AUM, Ape Matrix, various DAWs like GB, Cubasis, Loopy Pro, Zenbeats, Nano Studio 2, Logic Pro for Ipad, etc. At an absolute minimum make it function as an IAA with audio hosts. (dinosaur legacy, but theres a ton of em' out there, better than nothin')
I love the features you include in your app, such as the ability to optionally use a different Soundfont, change tempo, and key, turn effects on and off individually, optional EQ section AND you actually display the name of the file (allowing lengthy titles, as Midi files can be). Well done! Stay with it!