Sonoma Wireworks had both new hardware on display (see the GuitarJack Stage news item here) but also a new version of their Drumcore software which reaches version 4 with this release.
Drumcore uses real recordings of drummers to build a library of component audio building blocks of grooves and fills which can be seamlessly joined together to form your drum track.
Based on audio, there's a limit of how far you can timestretch audio blocks recorded at one tempo, to fit within a target track at a different tempo, but the software handily highlights which selections might not quite work within your composition, so you can be sure of crafting a track which fits together perfectly.
In addition, the audio segments can be presented as MIDI information too, so you can swap out sounds easily. We asked Daniel Codella and Douglas Wright to give us the skinny.