Center Stage

You brandish the instrument used in the casting of the spell with a flourish, conjuring a performing stage beneath yourself for up to ten minutes. The stage rises from the surface beneath yourself feet and stands a couple feet tall, ensuring you're easily on display, and is always wide enough to support the size you are when you cast the spell (5x5 feet for medium, 10x10 feet for large, etc). It is surrounded on the outside by a ring of semi-corporeal speakers that are always about half as tall as you are, providing you half-cover while you're on stage.

The stage is a construct of magical force and must be conjured onto a surface with enough space for it to fit in it's entirety. It anchors to the surface you cast it upon. If there is not enough vertical space for the stage and your height at the time of casting, the spell fails. The stage is conjured entirely within your occupied space. If there is another creature occupying your space when the spell is cast that creature is lifted with the stage just like you are.

Within a 30 foot emanation projected by the speakers, hostile creatures suffer disadvantage on saving throws to resist your spells and magical effects that deal Thunder damage.

While on this stage the speakers amplify sounds of your choice that you make, such as playing an instrument or singing, or the verbal components of your spells. This extends the range of any non-touch spell you cast that makes noise (such as verbal components, using an instrument, if the spell says it makes noise, etc.), as well as any effect from you that requires the target to hear you, by the same distance as the emanation described above.

Additionally, any Performance checks you make while on this stage can be clearly heard by any creature out to a distance of ten times the emanation's range.

If the spell would end because it has reached the end of it's duration, you may expend another spell slot of any level, extending the spell's duration by 10 minutes per spell slot level of the expended spell.

Using a Higher-Level Spell Slot. Add 10 feet to the distance of the emanation for each spell slot level above 2.