Hey, for some reason one of my screw is loose for my sax and this has happened to my previous altos I've had. Well I'm not sure if a screw is loose or one of my keys are loose but my second key (2 down, an A), you know how theres 2 keys, ones on top and theres another one stuck onto the top key. If you play a B flat, tht key goes down, however for mine, its always down and it never sticks onto the top key. Anyone know how to fix this? I remember some guy fixing this really easily.

Take it to a tech.

Take a screwdriver and screw the screw back in. Please do not force the key back into place because you could snap it in pieces. It should not be too difficult. Don't tighten the screw too much because the key will not move.