Magical Strings

As a master of spinning silk thread in the Spirit World, you can create strings imbued with magic that is released when played on an instrument in which you have proficiency. You must also have proficiency in Performance. The process of imbuing strings with magic requires 1 hour of concentration for each string. The maximum number of magical strings you can have at one time is equal to your level. You may only activate one magical string per turn using an action. You may switch one magical string for another using an action and a successful Dexterity check equal to your spell save DC; on a failure, the magical string breaks and is loses its magic. Each magical string loses its magic once it is played, no matter the outcome.

The effects for the different colours of magical string you may chose from are:

Gold - When you make an attack roll, ability check, or a saving throw, you can play this magical string made of pure luck. Make a Performance check equal to your spell save DC. If you fail, the string breaks and you must use an action to re-string your instrument. If you succeed, you can roll another d20. You can then choose which of the d20s is used for the attack roll, ability check, or saving throw. 

Red - Make a Performance check; if you roll equal or higher to your spell save DC, you may cast Charm Person on a creature and following the effects of the spell, they will not be aware they were under its influence. If you fail the Performance check, the string breaks and your intended target becomes aware you were trying to cast that spell on them.

Blue - You cast Detect Magic. For the duration of the spell, you must continue to audibly play your instrument or the spell will end.

Orange - You gain the ability to understand and speak one additional language of your choice for one hour. For the duration of the spell, no matter what language it is, you can only sing the words you speak, or no sound will come out of your mouth.

Green - You cast Healing Word at 1st level with a spectacular high note. You cannot target yourself.

Violet - You cast Sleep by singing a lullaby. You must continue audibly playing your instrument for the duration of the spell or it ends.