Recording: Nachtviole 5 Allegretto Giusto (Mertz) / opnames-mertz-2-en / By Mark Recording date: November 2013. Guitar: Kwakkel Merula. Tuning: A=440 Hz. A joyful finish to the Five Nachtviolen! I was pleasantly surprised by the happy theme and the possibilities to play with lyricism in this piece. Music with a bit of humour. Fullscreen