I am currently a Year 2 Middle School Student (Secondary 2 Student) in a school concert band playing Eb Alto Saxophone. My lowest Bb on my saxophone register up to low C# always turn out sharp unless I blow more air into it (but the tone’s terrible!). Also all the notes I play from the A with octave key and the saxophone’s highest F is flat! Although, I can get my A in tune if I adjust my embrochure (often I am too slow and this is not good for fast songs). Can anyone help me think of a way to play saxophone notes in tune as I currently am involved in playing fast pop songs. Thanks

I play the same thing but idk, I’ve only been playing in middle school for two years also. When you tuned for concerts they just told us to push in or pull out or blow faster or slower air.
Also maybe you might need to take it to the shop