I have just a few more musical gifts to share with you before twelfth night! If you’ve not heard this before, I hope you enjoy the surprise. Bulgarian polyphonic singing has a distinctive sound, coming from a vocal technique that creates a strident tone and harmonies that are full of exciting dissonances. Perunika Trio is a London-based group who specialise in this style of singing. I especially love the whoops and shrieks in this track. Oops, did I just give away the surprise?