Swell shutters.
swell shutters
Louvered shades which open and close to vary the volume of sound which can be heard. * Synonyms: swell shades, swell, shutters, crescendo. * Dutch: zwelblinden. * French: jalousie. * German: G. Werk, Schweller.
tabatier (French)
Tobacco holder or snuff box.
takeup spool
In a roll-operated instrument, the powered cylinder to which the end tab of the roll is affixed. The take-up spool pulls the roll over the tracker bar.
tambourine
Wooden hoop inset with small metal discs or jingles which rattle when the instrument is shaken, often with a drum head attached to one side. A popular addition to orchestrions, photoplayers, etc.