Drum Tab Machine using Sonic Pi

Here's a simple drum machine that can read drum tab notation using Sonic Pi.
It doesn't support changing the notes or samples live yet, hopefully I'll be able to add that soon. More flexibility in the tab format is also coming later.
Source code: github.com/stephanmullerNL/so...
Sonic Pi: sonic-pi.net/

[@TheWhippingPost]

We were really rocking out at the end there. Hope to see more!

[@ImKanal1]

WOW, thats great! COOL! Thumbs up

[@drolbifshavers3124]

SICK

[@roouzhG]

When I put my tab, it marks me
"TypeError thread dead
No implicit conversion of nil into string"
And it marks me in
"bars = parse(tabs)" line
What can I do for fix it please?

[@hereticstanlyhalo6916]

um the source code doesn't work anymore

[@hereticstanlyhalo6916]

nvm found it, but the peices below the notes arnt their

[@stephanmuller1450]

Oops, thanks for letting me know. Does this work for you? github.com/stephanmullerNL/sonic-pi/blob/master/utils/tab-machine.rb