Triplet feel indication is drawn once per voice in multi-voice bars #2973

Is there an existing issue for this?

• I have searched the existing issues

I have read the contribution rules

• I have read CONTRIBUTING.md and, if any AI agent helped draft this issue, AGENTS.md.

AI authorship

AI-assisted (disclosure block included as described in AGENTS.md)

Current Behavior

When a bar with a triplet feel has more than one voice, the triplet feel indication ("(♫ = ♩♪³)") is drawn once per voice, stacked above the staff. In the example below the first bar shows it twice. In a Guitar Pro 7 file of mine with two voices and three triplet-feel changes, 6 indications are drawn instead of 3.

Expected Behavior

One triplet feel indication per change, at the start of the bar where the feel starts or changes, whatever the number of voices. This is how Guitar Pro shows it, and how alphaTab already shows the tempo marking and section markers in multi-voice bars.

Steps To Reproduce

Render this alphaTex:

\track "Guitar"
\staff {score}
\tf t8
\voice
:8 c4 d4 e4 f4 g4 a4 b4 c5 |
\voice
:2 c3 c3 |

The indication is drawn twice above bar 1. Without the second \voice it is drawn once.

Link to jsFiddle, CodePen, Project

No response

Version and Environment

[AlphaTab][VersionInfo] alphaTab 1.9.0-alpha.1963
[AlphaTab][VersionInfo] commit: 925f21d7859f6dcd71e43e0d352d9804a9316495
[AlphaTab][VersionInfo] build date: 2026-10-18T04:22:16.182Z
[AlphaTab][VersionInfo] High DPI: 1
[AlphaTab][VersionInfo] Platform: NodeJs
[AlphaTab][VersionInfo] WebPack: false
[AlphaTab][VersionInfo] Vite: false

Node.js v24.19.0, SVG render engine. The same doubled indication shows in the browser, in a web app built with Vite.

Platform

Node.js

Anything else?

No response