Ive just started playing the Bb clarinet. This is my first instrument (its a second hand yamaha ycl26) and im planning on getting a few lessons after the festivities. Anyway, ive been messing around with it practising 3 blind mice and other learners songs, making sure my lips are correct and restarting if i make the squeaky brakes or if i can hear a leak however my low notes sound awfully like a lorry horn and not smooth. Is this simply a case of practise makes perfect or is there a problem with my tooter?