MNX Specification Working Group meeting: July 6, 2026

Myke was unable to attend this meeting due to travel commitments, so only Adrian and Daniel were in attendance for this session.

Dynamics

We agreed to expand the number of dynamic levels from ppp<->fff to pppppp<->ffffff, to match MusicXML and the range of glyphs provided in SMuFL (#521)
For accent-dynamic, we agreed that we would use the same dynamic levels as an immediate dynamic, with two enumerations for prefix and suffix, allowing you to specify a prefix of s, r or nothing and a suffix of z or nothing. (#521)
We agreed that we would add an optional ID – for now called visuallyContinues – that specifies a previous dynamic that should be considered as linked for the purposes of alignment (#521)
We revisited how we handle fp dynamics and propose that we remove attackValue and instead encode them as accent-dynamics, with a new residualValue value to specify that the dynamic level continues as p (#522)
To accommodate a gradual dynamic that ends on a different staff, we will add endStaff to dynamic group, using the staff number (#523)

We haven’t had any community feedback on the proposal for measure repeats (#520), so Adrian plans to go ahead and add this to the spec as-is.

The next MNX specification working group meeting is scheduled for Tuesday 28 July 2026.