I once constructed a live setup in keykit to make laptop music on the fly with a live band. It's not easy to do well (you really come to respect how difficult it is to replicate the expressiveness of a traditional instrument). taptempo will work in a live setting, but there are a few tricks that help make it useable:

- You may want to compensate for latency (so that the computer doesn't come in on beat 1 +20ms or whatever your latency is). i.e. the phase for the beginning of the measure is shifted back by -Xms to compensate for latency

- I rigged it so that when you tap N beats (where N is the number of taps used compute the average bpm), the taptempo would automatically trigger some sort of sequencer module on the N+1 beat. Every instant is critical in a live performance context...

- Speaking of doing things efficiently, I preferred to have the taptempo take 8th notes instead of quarter notes. This made it easier to come in within a shorter amount of time (but still have a few taps to compute an average bpm).

~A


On Sun, Mar 21, 2010 at 10:27 PM, Austin Huang <austinh@cs.brown.edu> wrote:
I once constructed a live setup in keykit to make laptop music on the fly with a live band. It's not easy to do well (you really come to respect how difficult it is to replicate the expressiveness of a traditional instrument). taptempo will work in a live setting, but there are a few tricks that help make it useable:

- You may want to compensate for latency (so that the computer doesn't come in on beat 1 +20ms or whatever your latency is). i.e. the phase for the beginning of the measure is shifted back by -Xms to compensate for latency

- I rigged it so that when you tap N beats (where N is the number of taps used compute the average bpm), the taptempo would automatically trigger some sort of sequencer module on the N+1 beat. Every instant is critical in a live performance context...

- Speaking of doing things efficiently, I preferred to have the taptempo take 8th notes instead of quarter notes. This made it easier to come in within a shorter amount of time (but still have a few taps to compute an average bpm).

~A

On Sun, Mar 21, 2010 at 2:33 PM, Dan Wilcox <danomatika@gmail.com> wrote:

I have some some drum sample, step sequencers, and pattern saving patches if you want.


On Mar 14, 2010, at 11:13 PM, Andrew Faraday wrote:

Have you had any luck in building a step sequencer, by the way?

> From: mr.spoon21@gmail.com
> Date: Sun, 14 Mar 2010 14:26:47 +0100
> To: james@4thharmonic.com
> CC: pd-list@iem.at
> Subject: Re: [PD] Using Pd to play drums in a band
> 
> On 14 March 2010 13:42, James Dunn <james@4thharmonic.com> wrote:
> > Quoth Carlo Trimarchi, on 14/03/10 11:30:
> >
> > Not sure if this is the best way but it might help you. It uses [demux] from
> > the zexy library. Hit the spacebar to tap out a tempo.
> 
> Thanks for your interest (and also thanks to Andrew Faraday who
> replied directly to me), but I think these tapping methods are hardly
> working fine for me. Maybe it's me - I'm unable to tap at the same
> time - but every tap it displays a different number. I have to think
> something else, maybe.
> 
> Anyway, I'd like some starting point to implement a drum machine or a
> step sequencer. Maybe some existing patch or some particularly useful
> tutorial or argument.
> 
> Thanks again,
> Carlo
> 
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