Comment 7 for bug 1897186

"what if you don't understand the bpm?"

Is it not sufficient to see/hear the relation of vertical strokes on the waveform to peaks in the waveform shape?
If a user doesn't know what the BPM number means why would s/he want to change it?
Whenever I introduce formerly non-DJs to Mixxx and they don't know about BPM, they usually also don't care about it and don't touch the pitch slider, let alone Sync or Quantize controls.

"would it be too much to have the lines in the change-previews submenu finish visually with a dot that flashes at that bpm?"
That would make sense IF the respective deck is playing, but IMO it should then also be aligned with the 'real' downbeats, which _probably_ hard to achieve if Mixxx detected the wrong BPM in the first place.

Let's go with the BPM number preview first.