om, I do appreciate your offers to help, but I am afraid I am beyound help. I have had it with BIAB as I prepare to exit this forum (...not with a bang, but with a wimper). grin

The mp3 in question is a Youtube download which I am trying to cover. Noel has already worked with the mp3 and it fully functional and he created an apparent nice tempo map. But I am not looking for a fish dinner. I need to know how to fish.

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to be fair show me any daw that can do exactly what you want ie chord interpretation/tempo mapping from audio (mot midi) cos imho to be fair as i said imho its darn difficult at the coding level. i would love to test such a daw...as ive tested many recently and i didnt find a way to do this....its a devil of a job matching new content to old masters from my experience.

Yes, I agree. Reaper comes darn close and I am certain it will do better when I learn more how to do this in Reaper. So that is where my efforts are going to go moving forward.

Concider this my final message to you personnally on my farewell tour. Carry on my friend and keep making music.
Dan

BIAB – 2025, Reaper (current), i7-12700F Processor, 32GB DDR4-3200MHz RAM, 1TB WD Black NVMe SSD, 2TB WDC Blue SSD, 1TB WD Blue, 2 TB SK NVMe, 6 TB External, Motu Audio Express 6x6