Make sure the ligature is untied and loose enough so that it can move easily. If the ligature is too tight, it can put pressure on the mouthpiece and make it difficult to remove.
Step 2: Try to pull the mouthpiece out.
Gently try to pull the mouthpiece out of the body of the saxophone. You can use your hands, a rag, or a pair of pliers. Be careful not to use too much force, as this could damage the mouthpiece or the saxophone.
Step 3: If the mouthpiece is still stuck, try using a penetrating lubricant or solvent.
Apply a small amount of a penetrating lubricant or solvent to the area around the mouthpiece. Let the lubricant or solvent sit for a few minutes, then try to pull the mouthpiece out again.
Step 4: If the mouthpiece is still stuck, try using heat.
You can use a heat gun or hair dryer to apply heat to the area around the mouthpiece. Be careful not to apply too much heat, as this could damage the mouthpiece or the saxophone.
Step 5: If none of these methods work, you may need to take your saxophone to a repair technician.
They will be able to use their tools and expertise to remove the mouthpiece safely.