🎶 Walpurgisnacht – a musical celebration of spring! ✨ 150 young voices and the grand concert organ fill Stadtcasino Basel with works by Mendelssohn, Grieg, Tormis & more. Experience a night of music, tradition & renewal. 🌿🔥🎼 🗓️ Tuesday, 11 February 📍 Stadtcasino Basel 🕖 7 pm. ➡️ https://thisis.basel.com/walpurgisnacht