Hi,
I know that when playing bass, timing is everything. Some people say they dont like when a bassist wanders off beat. Scientifically speaking, how early or late does initiating the note with respect to the beat have to be before the average person (not trained) will find it unacceptable? Preferably in milliseconds?
Thanks,
If you're looking to calibrate your internal metronome, setup a click track, and run through some grooves, arpeggios, whatever. When you get to the point where you can't hear the click because you're right on it, you've playing on top of the beat. If you're practicing Jazz, set the metronome to click on 2 and 4 -- it swings better. Once you've got that down, you need to learn how to play behind and in front of the beat. It's a subtle thing, but a lot of players make it harder than it is.
To develop your skill in pushing or pulling the time, find some drum loops where the snare is just a hair behind the 2 and 4 and some where the snare hits a smidgeon ahead of the beat. Tempo match your loops to your metronome. Here, the metronome serves as a reference point and if you listen closely, you'll hear, feel, and see where the snare is placed relative to the metronome. Practice playing along with these loops until rushing and pulling back on the reins feels natural and you don't need to think about it. Try deliberately changing how quickly or how slowly you attack the notes in the pocket. Solo your bass track and click periodically to get a sense of how you're developing.
These exercises will give you a good foundation, but the proof is in playing with other musicians live. A lot of cats equate playing behind the beat with playing slower. Not the same thing at all. The pocket is malleable, but there is a line between carefully controlling where in the pocket you place your notes and being out of meter.
The most important thing is knowing where the 1 is, even if you're playing syncopated lines or in odd meters. As long as everyone in the band feels that 1, you're in good shape.