Sonoma Wire Works says RiffWorks T4 guitar recording software
( ), plus four RiffWorks
InstantDrummer Sessions, are now included in specially marked
packages of Dean Markley string packs.

Musicians can use RiffWorks to record ideas and complete songs with
drums and effects. RiffWorks InstantDrummer provides access to
full-kit drum recordings with a range of intensities and adjustable
variation. Four bonus drum sessions by top drum content providers are
also included. RiffWorks T4 integrates free online collaboration with
musicians worldwide and song posting to the community.

RiffWorks Standard costs US$129. It’s compatible with Mac OS X and Windows.