Apple Logic Pro 9 - Manual (Page 309)

2 Click the Hermode Tuning (HMT) button.
A No HMT checkbox appears in the Track Parameter box of all instrument channel strips.
3 Select this checkbox to prevent the selected software instrument track from following
the global Hermode Tuning scale.
This feature is ideal for an EXS drum kit that you don’t want tuned like your melodic
software instrument parts, for example.
Working with ReWire Applications
Logic Pro acts as a host for ReWire applications such as Propellerhead Reason.
309 Chapter 10 Working with Instruments and Effects