- + tca knows the current system well
- + complete control over how it works ; linking to an unstable lilypond will have its toll.
- - adding music editing capabilities to the lessonfile editor costs a lot of coding time.
- - solfege won't use (recycle) existing code from other projects, so all work will be doubled somewhere else.
- - not reusable anywhere else
- - improving printed output will need a lot of work
