What makes Spitfire by Jefferson Starship notable?

'Spitfire' achieved commercial success, reaching No. 15 on the Billboard 200 and solidifying Jefferson Starship's status in the rock genre. The album is notable for its blend of progressive and soft rock elements, influencing subsequent bands and artists in the late 1970s music scene. Released in January 1976, 'Spitfire' marked Jefferson Starship's third studio album, a significant moment following their commercial breakthrough with 'Red Octopus.' The band was evolving from its psychedelic roots into a more polished pop-rock sound, showcasing the diverse talents of its members during a time of lineup changes.