True Solo

Unleash the True Solo of your Musical Instrument.
If you are greatly talented or spent years with your Instrument you can Achive True Solo-Composition so thin for a ear, that causes a headache, yet attracts the attention of being much higher then Mortal.
The longer Solo goes, more planes of existance it can pierce to conjure or charm an immortal being.
For each True Solo played after the first you are requiered to do a CHA saving throw, to withstand it and continue it wihout any flinch.
Every one that can hear Solo needs to do a CHA saving throw or suffer headache and 1d4 of Psychic damage.