One of the (many, many) cool things about Garritan Orchestral Strings is MaestroTools by Jeff Hurchalla of Marblesound. It's a MIDI performance manipulator that allows the composer to add variety to manually played parts so that sampled instruments maintain a realistic variance in sound aspects.
Two *unfortunate* aspects of MaestroTools, though, are (#1) the Maple MIDI loopback driver app is required to be running, and (#2) any changes it makes to your MIDI performace are "frozen" the way they're originally received. While these are certainly no great impediment to their usefulness, I personally would rather (#1) get the same functionality as an MFX plugin within SONAR (or other MFX-capable host), and (#2) be able to view and edit my original performance before the effect of the MIDI manipulation is made permanent.
So I'm making this baby-step into reproducing the functionality of MaestroTools in MFX form.
TenCrazy.com MFX AutoAlternator allows you to do automatic bow-direction alternations in the ALT patches of Garritan Orchestral Strings. Of course, it can also be applied to other systems: for example, you can alternate left and right-hand hits on the Timpani patch in Garritan Personal Orchestra. Anything with two sets of alternate samples mapped across the keyboard is game.
But wait: there's more! I've added a feature that will allow you to alternate sound instances across two separate MIDI channels. As such, you can create hand-tweaked sample sets by loading in two of the same patch and altering the pitch and timbre parameters of only one of them.
Get your free copy at: