On his new Fountain Fire, guitarist Bill MacKay follows his own wandering direction

Like many avant-garde-leaning guitarists, Bill MacKay exudes the spirit of a wandering player walking the earth, at peace with pulling up a rickety stool and shuffling through a dusty acoustic jam with whomever he happens to encounter along the way. A frequent collaborator with local savant Ryley Walker—the pair have made a small selection of records together—MacKay has more recently been releasing his own solo guitar explorations, which prove he has the chops to command a quiet and respectful room of listeners.…