Complex sentence: Pressure Cooker is a nine piece reggae/ska/rocksteady band from Boston, writing, recording, and performing original music rooted in the styles of 60's and 70's Jamaican music.
Split into simpler sentences: Pressure Cooker is a nine piece reggae/ska/rocksteady band from Boston. The group writes, records, and performs original songs in the styles of 60's and 70's Jamaican music.