Da Capo

"From breaks and ruins... The most beautiful performance begins." -Skin-Deep Prophecy
The spell transform the user's appearance using the power of music and sounds, their hair becomes White, and their outfit become a white robe with faint grey lines that run down to the end of the robe and something that is similar to the piano keys on the collar, on the middle of the robe, here lies a Treble Clef 🎼 . Their pants is replaced with white pant and black lines running down from the head to the tail of it. On their face, a Vertical White mask, seemingly made of Quartz that cover the user's vision entirely cover their face. And Lastly, the Brush of Wonder which was transformed to a Scythe with notes on it, now turn into a black wand that's used for the Orchestra.
After casting the spell, the user become immune to all attacks, but can't move or take action, and is counted as "Stunned". However, the spell grants buff to their Allies and deal Continuous Psychic damage [1d6] to the enemies in range that hear the music and is in the effective range, and Deafened creatures can hear the music as well. The buffs change and stack based on the movements, higher movements inherit the lower one's buffs. The Movements count is based on what Spell slot used to cast it. For example: 3rd Level Spell slot : 1st Movement, and the list go up, up to 5th Movements (Finale). Each movements last for 5 Turns of the user.
The Magic can't be Dispelled by any means, beside Wish Spell, or gods actions.

[3rd Level Spell Slot -  1st Movement Only] 
Adagio e Tranquillo- Calm and Slow.  The allies in the effective range [70 Ft Radius, Centered on the User] the music can be heard even if the listeners are 100 ft away, but that's not the effective range of the magical effect. 
For Allies: Heal by 1d8 each turn of their and the user's, and gain 1 bardic inspiration dice each turn [1d6]. Speed increase by 5 Ft
For Enemies: Take 1d6 Psychic damage each turn of their and the user's. 

[4th Level Spell Slot - 1st and 2nd Movement Only]
Sostenuto - With restrained Speed. The effective range [100 Ft radius, Centered on the User] the music can be heard even if the listeners are 150 Ft away, but that's not the effective range of the magical effect.
For Allies: Heal by 3d8 Each turn of their and the user's, gain 2 bardic Inspiration Dice each turn [1d6]. Speed Increase by 5 Ft
For Enemies: Take 2d6 Psychic damage each turn of their and the user's, Speed Decrease by 5 Ft.

[5th Level Spell Slot - 1st -> 3rd Movement]
Accelerando e Cresendo - Gradually faster, growing. The effective Range [150 Ft Radius, Centered on the User] The music can be heard even if the listeners are 200 Ft away, but that's not the effective range of the magical effect.
For Allies: Heal by 3d8 Each turn of their and the user's, gain 2 bardic Inspiration Dice each turn [1d6]. Speed Increase by 10 Ft
For Enemies: Take 3d6 Psychic damage each turn of their and the user's, Speed Decrease by 5 Ft.

[6th Level Spell Slot - 1st -> 4th Movement]
Stringendo - Pressing ever Forward, Clutching. The Effective Range [200 Ft radius, Centered on the The user] The music can be heard even if the listeners are 250 Ft away, but that's not the effective range of the magical Effect.
For Allies: Heal by 5d8 Each Turn of their and the user's, gain 3 Bardic Inspiration Dice each turn [1d6]. Speed Increase by 20 Ft
For Enemies: Take 4d6 Psychic Damage each turn of their and the user's, Speed Decrease by 10 Ft.

[7th Level Spell Slot - 1st -> 5th Movement]
Finale. The Effective Range [300 Ft Radius, Centered on The User] The music can be heard even if the listeners are 500 Ft away, but that's not the effective range of the magical Effect.
For Allies: Heal by 6d8 Each turn of their and the user's, gain 4 Bardic Inspiration Dice each turn [1d6] . Speed Increase by 20 Ft. Gain Advantage on attacks rolls and 1 Extra Attack
For Enemies: take 6d6 Psychic Damage each turn of their and the user's, Speed Decrease by 10 Ft. At the start of the Finale, every enemies must make a CON and WIS Save or get paralyzed due to the beauty of the performance until the very end of it, before going Insane at the end of the Orchestra.

The End of the Orchestra [Occur if you Cast this on 7th Level Spell Slot only] 
The User, after the end of the Orchestra will get Stunned and Paralyzed for 5 turns, they'll also collapse to the ground.
The Enemies that failed the WIS Save will start to panic and gain Insanity for 3 turns. They can repeat the saves to snap out of it.
If Cast on level 7th, the spell will also use 1 spell slot from 3rd, 4th, 5th and 6th, the spell can only be cast at level 7th if there is at least 1 spells slot in 3rd, 4th , 5th, 6th, and 7th.