The conception of this series was the fruit of research on both external shape (particularly the beak) and sound, in order to meet the needs of today's saxo- phone players. ,,This series is available in: ,,' BL3: The standard baritone mouthpiece. ,' BL4: Versatile mouthpiece, suits both classical and jazz. ,' BL5: The classical open mouthpiece inspired by the BL3. Large and round sound.