Yo, i make transcriptions using this platform and then record them on Synthesia. A rule of thumb if downloading my MIDIs, Sitar is usually Tuba/Euphonium, Violin is usually Trumpet (in my older transcriptions + use common sense if it seems out of place) and Koto is usually Timpani. Everything else will most likely stay the same, apart from if there is three or more woodwind/reed instruments, in which they will be 8-Bit leads in my transcriptions. I also upload MIDI that i have found over the years, in the hopes that they will reach even more audiences.