Inconsistent Vertical Alignment of SMuFL Time Signature Glyphs Across Various Meters

[AminZahedSadeghi]

Misalignment Issue with SMuFL Time Signatures

I’m experiencing a misalignment issue when trying to create certain time signatures using SMuFL glyphs.

Example 1: 12/8 Time Signature

When rendering the 12/8 time signature, it displays correctly:

HTML code for 12/8:



Example 2: 10/8 Time Signature

However, when I change the time signature to 10/8, it becomes misaligned:

HTML code for 10/8:



Issue Summary:

• The alignment works fine for some time signatures (e.g., 12/8, 4/4), but for others like 10/8, 2/8, 8/8, and many others, the numbers do not align vertically.
• This issue causes inconsistent alignment across various displays.

Questions:

• Is there a recommended solution or workaround to ensure consistent vertical alignment of SMuFL time signature glyphs?
• Are there any known issues with specific glyphs or font metrics that might be causing this problem?

[knutnergaard]

Bravura's behaviour in this regard is based on ligature substitution, where typing in the individual characters in succession substitutes them with a separate ligature glyph representing the complete signature. Bravura does not have a ligature for 10/8, or any other multi-digit numerator signature except for 12/8, and so will not be able to display them correctly.

The best and only real solution, as far as I know, is to use/develop a font which supports the ligatures you need.