Sounds like an old TV show theme! 😀

I used the MIDI Voyager app and the CT4MGM.SF2 for convert MIDI to wav (each per channel).
I also added honky-tonk piano (for harmony) and dusty vinyl noise sfx and low pass effect too (to have a retro style).

....and I finally mixed with the MixPad Android app.

I hope you like it! 😉