One part The Weekend, one part John Mayer, the music of Boston-based Juice falls somewhere between pop, folk, R&B and blues. Formed in 2013, the seven-member group produces the kind of pop music you could easily hear on like a Disney movie, which is to say it’s family friendly. But don’t let the approachability fool you. Juice packs a punch. Plus, the quality of the band’s musicianship and songwriting are testimony to its potential staying power.
Thursday marked the first night of the resurrected La Semana Alegre music festival, which featured amazing performances from artists including Toadies, Girl…