Thorough documentation of classes, applications, usage and concepts are found under the directory Documentation in the source distribution.
The file Documentation/MusicKit_ChangeLog.txt lists changes for V5.6.2 and is generated from the Subversion logs.
README in PDF — This README document in the Adobe Portable Document Format (e.g Acrobat).
MusicKit and SndKit Concepts (PDF version) — Thorough documentation of the MusicKit and SndKit in operation.
MusicKit Tutorials (PDF version) — Tutorial exercises by David A. Jaffe, used in his lecture series.
Class Documentation — Documentation for each module, C function and Objective-C class.
Conference papers and lecture slides in PDF or HTML are listed in the bibliography.