12 Stücke in populären Stilen-Twelve stimulating original pieces in popular styles for Double Bass and Piano or Keyboard accompaniment. Graded in order of difficulty these compositions are designed to improve solo technique and character whilst developing articulation and rythmic nuances. Part of the successful Microjazz series this book by Christopher Norton is not only fun but a valuable resource for any developing Double Bassist. ABRSM Double Bass Syllabus.