What's the difference between bellows and musette?

Bellows

Definition:

(n. sing. & pl.) An instrument, utensil, or machine, which, by alternate expansion and contraction, or by rise and fall of the top, draws in air through a valve and expels it through a tube for various purposes, as blowing fires, ventilating mines, or filling the pipes of an organ with wind.

Example Sentences:

(1) To give variations in the peak flow-rate (from pulsatile to intermediate to non-pulsatile), three types of blood pump (piston-bellows, screw, and centrifugal) were applied to dogs.
(2) Partition coefficients for anesthetic circuit components (masks, bellows, bags, airways, and circuit tubes) consistently ranked halothane greater than isoflurane greater than sevoflurane greater than I-653, suggesting a reverse order of washin and washout rates for an anesthetic circuit constructed from similar components.
(3) She tried to rescue him from accusations of an apparent comparison of Israel to Islamic State, but a Jewish MP leaving in tears after being bellowed at by a Corbynite is all anyone will remember of Labour and Jewishness.
(4) The performance was not without some good‑natured heckling, largely involving bellowed chants of "We want you to stay" from the assembled playing staff.
(5) Water-sealed spirometer (Harvard), dry bellow wedge spirometer (Vitalograph) and computerized pneumotachograph (Gould), all of them satisfying the ATS recommendations were compared.
(6) Chosen by impressive writers and critics – including Elizabeth Bowen, Philip Larkin, George Steiner, Saul Bellow, AS Byatt, Ruth Rendell, John Carey – these shortlists demanded, at least, some respect.
(7) Bellows is known for his powerful paintings representing the hardship and desperation and grittiness of life in New York as it emerged in to the 20th century.
(8) Each time the home secretary referred to numbers of extra staff being drafted in to sort out the backlog, there were bellows of "You sacked that many!"
(9) Fans bellowed “Beat The Heat!”, turning a summertime slogan into a mission statement and a double-entendre.
(10) Coquelin is relatively new to the side but at one point he could be seen bellowing at his team-mates, demanding they did not lower their standards.
(11) In the end the Chelsea players who had hoped to conquer the world were left slumped on the turf as the Brazilian drums pounded and the raucous hordes of Corinthians supporters bellowed their celebration into the night sky.
(12) All examinations were performed with a half--open dry bellows spirometer.
(13) It is, however, the perfect place in which to contemplate the bellowing horror of 19th-century rural-industrial injustice.
(14) Leicester survive late scare against Swansea to secure first win of season Read more Conte, wearing a black armband in memory of those who lost their lives in the earthquake which struck central Italy on Wednesday, never stopped bellowing instructions at any point, even when the game was clearly won.
(15) All parts subject to wear, such as filter, tubings, and bellows, are commercially available through the medical equipment market.
(16) Expiration occurs by opening the diaphragm bellows to the atmosphere.
(17) Allen cites a list of actors, including Jeff Daniels (Purple Rose of Cairo), Patricia Clarkson (Vicky Cristina Barcelona) and Dianne Wiest (Hannah and Her Sisters), who Taylor persuaded him to use, as well as being able to convince already well-known personalities such as Saul Bellow, Marshall McLuhan and Susan Sontag to make cameo appearances.
(18) During the second period of IMO the level of AVP in plasma decreased even bellow the control values which was accompanied by water diuresis.
(19) In 1949, Saul Bellow went to a cocktail party hosted by Cyril Connolly, and found his preconceptions of literary England being undermined: “Although I don’t judge the inverted with harshness, still it is rather difficult to go to London thinking of Dickens and Hardy to say nothing of Milton and Marx and land in the midst of fairies.” Most of the people I’ve mentioned were living their lives more or less openly.
(20) After his death the obituaries proclaimed Bellows one of the greatest of all American painters – a man more famous at the time than his friend and contemporary Edward Hopper.