DiffKit

Copperbox revisions 80 & 81.

I've renamed the hsdiff library to DiffKit (revision 80) and added some currently incomplete handling for context and normal format diffs (revision 81).

Sound.Bala

Copperbox revision 79.

Quite a big update to Bala. The directory structure has been reorganized and the Midi and Base libraries have been extended.

Sound.Bala

Copperbox revisions 77 & 78.

The sound modules are now under a project named Bala (/libs/sound/Sound/Bala).
Check-in 77 left a few files in the wrong place - these were moved with check-in 78.

Temp: JSON

Copperbox revision 76.

I have added a JSON parser in temp/JSON.hs. JSON seems like a good candidate for a Humdrum-like notation to use with the sound tools.

Sound: ABC

Copperbox revision 75.

Minor updates to the Abc library - the `L`field (field-default-length) had the wrong length type.

I now have a test harness - the parser runs for the simplest of files, but the pretty printer generates ill-formed output.

Sound: ABC

Copperbox revision 74.

Updated the Abc parser and datatypes. The parser is now written with the applicative combinators. The datatypes have been made a bit more uniform, although this has only been done for the `data` definitions and not the `type` synonyms.

Added a pretty printing module and a top-level module.

Sound: ABC

Copperbox revision 73.

Renamed the `midifile` directory to `sound` and added a new sub-directory `Abc`, with a parser for Abc notation. This parser is a rough prototype at the moment.