3 - global layout and source code organization
4 - base functions and syntax
5 - music from the first Act
9 - Complete Vocal score (with piano accompaniment in instruments/reduction.ly)
10 - Add dynamics and articulation marks
14 - Orchestration (full_score.ly)
15 - Layout improvements (graphics, etc)
23 - Vocal score first release candidate
24 - Full score first release candidate
25 - Individual parts release candidate
27 LONG SHOT IMPROVEMENTS:
29 - Foreign translations
30 - Rewrite the \include function