The dsp-D8 is a great drum chip with its 8 voice polyphonic playing capabilities. But the 28-pin DIP can be quite large for DIY projects.
The Drum8 is much smaller with a 14-pin DIP footprint hosting still the same 8 voice polyphony adding a global pitch CV and a true analog accent input.
The trigger inputs has change to rising edge detection and it now runs on the ATtiny84.
And the best of all,
It goes open source this week with the code posted here in the right side menu.