I was reading through Standard Music Notation Practice produced by Music
Publishers' Association of the United States (MPA), see
Some of the guidelines are the responsibility of the user, but many of
them apply to the notation software. Below I wrote out some places where
MuseScore differs from the MPA recommendations.
"Stems of notes on ledger lines...must be extended to touch the middle
line." (p. 4)
In MuseScore the stems are about half a space off. Up-stems extend
slightly past the middle line. Down-stems are slightly short of the
middle line. Beamed notes ignore this rule entirely.
"The normal stem length of one octave will accommodate up two
ligatures." (p. 4)
Basically this means that the stems for beamed sixteen notes shouldn't
be any taller than the stems for beamed eighth notes. In MuseScore
beamed sixteen notes are too tall. Beamed 32nd and 64th notes are also
too tall. Their non-beamed counterparts (i.e. flagged 16th, 32nd, and
64th notes) are the correct height.
"When an interval of a second is written with opposite stems, the stems
must be in alignment..." (p. 7)
In MuseScore noteheads will overlap for intervals of a second written
between two voices.
"Bowing marks are placed, if possible, above the staff regardless of the
direction of the stems." (p. 10)
MuseScore actually places them on the note head for up-stem notes! I
noticed several placement mistakes with the other articulations and
ornaments. Turns and reverse turns should clear the top of the staff.
Likewise dfermata should clear the bottom of the staff. The following
articulations behaved correctly for notes in the staff, but were a
little too close for notes above or below the staff: thumb, sforzato,
expresivo, uportato. dportato, ouvert, plustop.