Katterwall April 22, 2009gant_admin Katterwall provides high quality, enjoyable musical experiences ranging from one-on-one singing lessons to one-off workshops, year round choirs to corporate entertainment. The name ‘Katterwall‘ is derived from ‘Caterwaul’ (Middle English ‘Caterwawlen’) meaning: 1. A harsh, offensive noise 2. The yowling sound made by a cat in heat 3. To have a noisy argument To enter Katterwall please click.