Upgrade blindly to the latest LilyPond syntax.

I haven't tried to understand or fix any of the below conversion
errors.

$ convert-ly -e student-piece-1.ly
convert-ly (GNU LilyPond) 2.16.2

convert-ly: Processing `student-piece-1.ly'...
Applying conversion: 2.11.2, 2.11.3, 2.11.5, 2.11.6, 2.11.10, 2.11.11, 2.11.13, 2.11.15,
Not smart enough to convert VerticalAlignment #'forced-distance.
Use the `alignment-offsets' sub-property of
NonMusicalPaperColumn #'line-break-system-details
to set fixed distances between staves.
2.11.23, 2.11.35, 2.11.38, 2.11.46, 2.11.48, 2.11.50, 2.11.51, 2.11.52, 2.11.53, 2.11.55, 2.11.57, 2.11.60, 2.11.61, 2.11.62, 2.11.64, 2.12.0, 2.12.3, 2.13.0, 2.13.1, 2.13.4, 2.13.10, 2.13.16, 2.13.18, 2.13.20, 2.13.27, 2.13.29, 2.13.31, 2.13.36, 2.13.39, 2.13.40, 2.13.42, 2.13.44, 2.13.46,
Vertical spacing changes might affect user-defined contexts.
Please refer to the manual for details, and update manually.
2.13.48, 2.13.51, 2.14.0, 2.15.7, 2.15.9, 2.15.10, 2.15.16, 2.15.17, 2.15.18, 2.15.19, 2.15.20, 2.15.25, 2.15.32, 2.15.39, 2.15.40, 2.15.42, 2.15.43, 2.16.0
Regenerate MIDI+PDF blindly after syntax upgrade.

$ lilypond student-piece-1.ly
GNU LilyPond 2.16.2
Processing `student-piece-1.ly'
Parsing...
Interpreting music...
warning: cannot find property type-check for `forced-distance' (backend-type?).  perhaps a typing error?
warning: doing assignment anyway
[8][16][24][32][40]
Preprocessing graphical objects...
Interpreting music...
programming error: Impossible or ambiguous (de)crescendo in MIDI.
continuing, cross fingers
programming error: Impossible or ambiguous (de)crescendo in MIDI.
continuing, cross fingers
programming error: Impossible or ambiguous (de)crescendo in MIDI.
continuing, cross fingers
programming error: Impossible or ambiguous (de)crescendo in MIDI.
continuing, cross fingers
MIDI output to `student-piece-1.midi'...
Finding the ideal number of pages...
Fitting music on 3 or 4 pages...
Drawing systems...
warning: cannot fit music on page: overflow is 1.705373
warning: compressing music to fit
Layout output to `student-piece-1.ps'...
Converting to `./student-piece-1.pdf'...
Success: compilation successfully completed