Yup, lots of Macs in use by pros in music production and the audio industry in general—including many older Macs, which are still perfectly capable machines for many uses.
But there are those on MR forums (with zero relevant experience) who will be happy to inform you that Apple has lost the pro market, for a variety of reasons which they can explain to you at length. They’ll also tell you the 6,1 was a complete failure, that nobody cares how quiet or transportable it is and that nobody buys it because they’d rather buy old, used towers due to their upgradability lol.