What a bunch of BS. There's no way, absolutely no way a group of people that can't speak each others language well enough to have deep conversation, can't or won't read music, refuse to even think about time signature, arpeggios, major versus minor key orchestration, or how polyrhythmic variations affect the eating habits of the non aboriginal community can "magically" play music in a cohesive way. Either you're not being honest or there was something else going on prior to your group's playing together. AND you claim everyone swapped instruments? Are you crazy? What you claim is utterly impossible without years of formal training and even then many people would just end up quitting due to the extreme difficulty of understanding how music works. You can't do music without a degree, and that degree tells you/us at what level your music ability really is. Quit telling such tall tales. You're not fooling any of us. You have to be formally trained to play music. Much like Keith Richards.