- document usage of the gabc parser - there doesn't seem to be any other Ruby gabc parser available
- support loading the parser subtree on its own, without utilities for conversion to other formats
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update rspec matchers
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relative mode
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choose absolute pitch of the choral key or modern key to set the melody in
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handle accidentals and key
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produce lilypond gregorian notation instead of modern (will be quite hard to do - has to correctly determine neumes)
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the PEG parser is too restrictive for real-world use; explore the solution of gabc-tk
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test gem build and functionality of installed executables
- convert simple lilypond scores (like in the In adiutorium project) to gabc
- convert to musixtex (both modern and quadratic notation)