DAW7: What's wrong with timing??

This video is a wild goose chase to figure out why I can’t seem to calculate the start/end sample of notes properly.

Timestamps

• 0:00 Intro / Working demo
• 0:44 Feeling defeated (late at night)
• 1:28 A fresh start (in the morning)
• 2:18 Plenty of print statements
• 2:44 Calculating it by hand, on paper
• 3:06 Refactored: still wrong, but closer
• 4:22 BPM driving me insane
• 4:46 Fixed BPM equation (again)
• 6:40 More print statements & hair pulling
• 7:12 THE FIX! 8 CHARACTERS
• 7:33 How it should sound
• 7:54 Piano demo
• 8:05 Visualizing note addition in Audacity
• 9:19 Attempting to fix clipping, Roadmap
• 10:01 New architecture idea
• 10:50 Outro