Re: Implements rhythmic-music-iterator (issue 5554048)

[mtsolo]

The tuplet-iterator.cc has a process method that uses similar logic as
that above: it does parts of what the report_music function does,
because as you correctly state, the function does very little.

LGTM - if you can, please adopt this patch so that you can coordinate
getting it and others connected to it into the source.

http://codereview.appspot.com/5554048/