I have lots of presets and bank files for all the popular software synths like Sylenth1, Massive, Spire, Serum , etc. I was thinking how useful it would be to have a program or utility that would facilitate listening to each preset one-by-one in succession.

You would load one or more MIDI files that would be played and the program would play it using all the presets that you told it to. This would save a lot of time loading each preset and playing the MIDI. You could make it so that it plays in certain keys, tempos, etc.

I googled for such a program and didn't find anything. I'm not skilled enough of a programmer to write my own. If anyone wants to steal this idea and build it, be my guest I won't ask for royalties, just give me a finished copy when you're done ;-).