When is a ska band, not a ska band? When it is Subject A, a musical collective that takes the whole reggae-roots sound to another dimension. Some of their songs are built from gorgeous tumbles of reggae grooves and gentle, lilting rhythms, but even then, they are draped in a sonic veil that softened and restrained the music. At the other end of their spectrum are songs forged from ambient sounds, haunting, gossamer-like, and almost celestial vibes. The next chapter in the story of ska? Yes, indeed.