Ian, the frontal approach is often used by surgeons if the disk is high, such as a C4/C3 herniation. Tell the surgeon you are a professional singer and they will use a lot more caution during the procedure to prevent damage to the vocal folds.

Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)