Platform - MPTM
The OpenMPT format (.mptm)
MPTM is OpenMPT’s own format. It is based on the IT format, with added capabilities of custom sample tunings, Parameter Control events, multiple Pattern Sequences, tempo swing, fractional tempos, global resampling settings and many more features. Some features such as VST plugins are currently usable in XM and IT as well but really should only be used in MPTM files. You can find these features by using the Find Hacks functionality in the View menu.
Compared to IT, this format also adds back support for the OPL chip as found in the S3M format with several useful additions, such as being able to apply instrument envelopes to FM instruments or controlling the modulator intensity through sample filter cutoff.