A circle of shell-shocked parents in a mansion flat; a dozen toddlers gripping minute, 16th-size violins, the concentration causing them to sway like drunks; the merciless sawing of their tiny bows; and a noise of indescribable horror – ‘Twinkle Twinkle Little Star’ reconceived as the hold music for Hell. These were the group violin lessons I remember (and enjoyed) as a disciple of the world-famous Suzuki method, devised in Japan in 1948 by an unworldly idealist called Shinichi Suzuki.