so the average thing- the more taps you give the “better” the tempo results from taking an average. That makes sense and sounds like a logical and good idea.
However could it be that as well as the kpa establishing an average the player also settles into a more regular pulse and also delivers their average as they settle into the groove? Part man part machine effort.
I thought about this at this weekends gigs and to be honest i don't have much time to balance on one leg and tap out a tempo for much more than 3 or 4 beats. Its just not practical, especially as we, the musicians, move around the stage as part of the act.
If upon loading a new rig/slot there is some “settling” time required before a steady tempo can be established then i need an alternative more reliable solution. I often need the tempo set immediately following the one bar count in.
If anyone gets chance, try this, get someone (or something) to tap a new/different regular/stable tempo immediately following a slot change. Tell us how long it takes to follow the “new” tempo.