Battle Ballad

 "Why do I hear boss music?" - A goblin somewhere

You play battle music with your preferred instrument, that song fills your allies with energy and inspiration, all your allies in a 50ft (15 meters) gain 1 inspiration dice for their attack OR damage rolls, every round until your music stops.

You cannot do any action, bonus action or reaction that will have you stop playing your instrument, and your movement is reduced by half while casting this spell. If you fail the concentration check 1 time, only half (randomized) of your allies will receive the inspiration, if you fail the concentration check 2 times, only one (randomized) of your allies will receive the inspiration, if you fail the concentration check 3 times while using this spell the spell will end, every time you get hit while casting this spell you need to roll a concentration check.