The cover of Eddie Manion’s “Coastin’ In” album. Eddie Manion covers “Deep Purple” on his new album, Coastin’ In. Not Deep Purple the band, but “Deep Purple,” the 1930s instrumental that that band named itself after. Manion, who will release Coastin’ In on Feb. 28, looked far and wide for material for this album, drawing on songs from the ’50s, ’60s, ’70s and ’80s in addition to the ’30s, and also writing two originals. His method was simply to find material that would work well with his saxophone leading the way, and he chose well; this album is full of indelible melodies, from material as di…