Few Celtic bands balance tradition and innovation with the grace of Solas. As anyone who has seen The Brothers McMullen can attest, Solas knows how to play Irish jigs and reels. But Solas is also a topflight fusion band, as they prove on tracks like “The Ploughman,” a traditional song encased in a Balkan-like tune; or “Erin,” whose fiddle arrangements sound like they escaped from a Beatles studio session. Covers of songs penned by Casey Neill, Anje Duvekot and Richard Shindell stand cheek-by-jowl with timeless tunes and originals that soon will be. And any band with muscular musical talent the likes of Seamus Egan, Winfred Horan, Mick McAuley, Eamon McElholm and Deirdre Scanlan is bound to turn heads. Solas is as evocative as an Irish mist and as hip as an urban street corner.