New in Mozart 17
Mozart 17 is now available.
If you have already bought Mozart 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16, then you may obtain Mozart 17 at a special upgrade price.
Mozart 17
introduces the following new features.
Music without key signatures

Music may now be shown without key signatures, eg for traditional French Horn parts or atonal pieces. It is simple to toggle parts between options with and without key signatures.
Cue Staves
Mozart now supports cue staves, eg so that a part being accompanied can be shown at a smaller size on the accompaniment part:

15ma
Clefs may now be labelled 15ma to indicate a double octave transposition:

eg for glockenspiel or garklein recorder.
Annotating music


Music may now contain annotations, shown on screen but not printed.
The annotation "post-it" symbol, shown with the music, can be expanded to show or edit the text.
A choice of colours is available.
"Paste Rhythm"

A new 'paste-special' command allows you to impose the rhythm of a copied strand onto the target strand. [The example here illustrates the process of imposing the rhythm from the melodic part onto the rhythm guitar accompaniment.]
Instrument range

An instrument range may now be defined for each stave, so that notes outside this range are shown in colour. Mozart provides defaults for most instruments, designed to be 'comfortable' ranges for intermediate players, but the ranges are user-configurable, and the feature may be switched off if you don't require it.
Music range
The range of music in a part may optionally be indicated at the start:

If this option is adopted, Mozart calculates the range of notes on the stave automatically.
Clef changes
Mozart now remembers separate clef changes at written pitch and concert pitch, so that changing between them does not reassess clefs.

Score and parts

A score and its instrumental parts may now be viewed simultaneously such that editorial changes to the score are automatically included in the parts and vice versa.
In doing this it may be convenient to show a part side-by-side with the score. To assist editing in this configuration, the music in the currently inactive window is now shown with a darker background.
Rehearsal mark styles



A wider choice of rehearsal mark styles is now available.
Text box lists


Text box lists may now show either the raw (unsubstituted) text, or the text containing appropriate substitutions.
Accidentals over notes
Accidentals may now be placed over notes instead of beside them.

This option is very much non-standard but may occasionally be useful for courtesy accidentals.
System spacing

The system spacing dialogue box now supports an "Apply" option, for improved ease of editing.
Dynamic modifications
Each dynamic entry can now be given a modified playback volume, in order to optimise playback without affecting the appearance of the printed music.
Modifications may optionally be shown on screen:
Default music font size

The global preferences now allow you to set default music font size for a new score and/or parts.
Panoramic view
As you scroll right in panoramic view a guide is introduced, as a left margin, showing the score structure, clefs and key signatures at the point which has been reached...

...thus facilitating editing the music in this mode.
Stave label alignment
Mozart now offers a choice of left|right|centre alignment for stave labels of different lengths. For example:

Find command
Mozart's "Find" command has been extended to facilitate searches for bowing symbols.

Swing
The popular symbol for indicating swing is now available:

Dotted quaver (eighth) swing is now also available on play-back:

Figured bass
Basso continuo is now supported with Figured Bass notation, eg:

Layout reset
A new command has been included to reset the stave/system spacing to the default geometry. This is to enable starting with a clean format after importing from a foreign format, which can sometimes produce 'unusual' spacing.
...
Alignment across systems
One can now align classes of symbol across a system. For example hairpins:
Before:

After:

and bar numbers
Before:

After:

and many others.
*Reference

In 2011 Faber Music published "Behind Bars" (subtitled "The Definitive Guide To Music Notation") by Elaine Gould.
As noted earlier we continue to take this work as the gold standard for recommended good practice.