PROBABLY THE healthiest aspect of state-of- the-art music software is the way the lines blur between the tools we use to make music. The latest instruments borrow technologies from samplers, drum machines, sequencers, and audio processors. I recently checked out iZotope BreakTweaker, which is all of the above and more. BreakTweaker originates from iZotope’s collaborations with Brian Transeau (aka BT). It’s available as a plug-in only, in AU, VST, RTAS, and AAX versions. The installation and authorization procedures are simple and, thankfully, you can choose a disk for storing sample content. I ran BreakTweaker with Digital Performer 8.0.5 as a VST, as an AU plug-in with Ableton Live 9.1 and PreSonus Studio One 2.6, and as an RTAS plug-in in Avid Pro Tools 10.