The Open Music System, part 0 - preface
The primary method of organizing (and interacting with) MIDI devices on Mac OS 9 is through the Open Music System, developed by Opcode. However, OMS in itself isn't very "open" at all, as are most standards for music software. Steinberg's ASIO and VST are prime examples of this phenomena. In this series of blog posts I will be digging into how applications interact with the OMS system extension, in an effort to allow other programs to (legally) interact with OMS without using the proprietary OMS SDK. Find the next post in this series here.