Thanks for sharing your experience @TripleGemStudent!
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I have been reading this thread for while now.
so, it seems we can say that,
A = B + C + D + E
where,
A = vipaka = resulting music
B = external physical environment = Body = Radio itself
C = internal environment = Mindset/Bhava = Tuning of radio
D = Surrounding environment = Kind of people around us, physical location etc
E = kamma seeds = Various Radio stations broadcasting different audio