Builds the caption-line marker shown while music is detected.
Falls back to the bare glyph for languages without a curated label, which still reads correctly to any listener.
Listener's language code.
Marker text such as ♪ Música ♪, or ♪ when the language is unknown.
♪ Música ♪
♪
Builds the caption-line marker shown while music is detected.
Falls back to the bare glyph for languages without a curated label, which still reads correctly to any listener.