Is it permissible to make sounds that imitate not the musical instruments but other sounds? like gun sound, horse gallop sound, explosion sound, stepping sound, particles dropping sound, opening a door sound etc. Note that these sounds require you to beat some stuff or blow into some stuff just like the musical instruments (like beating a table, beating a metal etc). Making these sounds may even require you to use something like musical instruments and edit the sound in an audio editing program and these sounds are really pleasing to hear although they are not really music. And sometimes they may resemble some musical instruments like some gun sounds do resemble musical instruments.
If you want samples of these go to this site. https://www.soundsnap.com/tags/pump_action_0
However don't explore this site much as it may contain music.