The Parker Cantabile has a medium shallow cup and is a good option for solo, chamber and brighter/higher orchestral playing. This mouthpiece works well with smaller contrabass tubas and is especially in-depth for Eb/F tubas. This could be the choice mouthpiece for a quintet player playing on any keyed tuba. The Cantabile offers a lot of functional appeal to the working player. Intonation and fundamentals are well-centered on the Cantabile. The flexibilty of the Cantabile makes it a great mothpiece for works like Lohengrin and Symphony Fantastique.