Fixed the ProgramChange function to ensure the generated MIDI message has the correct 2-byte length.
#12
+23
−8
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Background
This PR addresses a good first issue (#5 ) related to the ProgramChange message length not conforming to the MIDI standard.
Changes
Fixed the ProgramChange function to ensure the generated MIDI message has the correct 2-byte length.
Updated unit tests to validate the proper message format.
Testing
All local test cases have passed successfully.
Verified with a sample MIDI file that instrument switching works as expected.
Related Issue
Resolves #5