Ruler & Guidebook to ruler playing. Tongue-in-cheek book Including your very own instrument to get you up & playing Immediately. Perfect for any would-be musician. Discover the secrets of modern ruler playing with Dan Wieden. The original maestro takes you through the highs, the lows, & the variety of twanging techniques. Master a musical instrument at your desk in just a few hours. Plastic ruler with printed finger markings & note positions. Sliding the ruler up towards the edge of the desk alters the note, enabling you to play anything from Abba to ZZ Top, just like this young gentleman. It doesnt involve controlled breathing. Or co-ordination. Or timing of any kind. It doesnt even involve leaving your chair. Your new found musical expertise will impress others. You could lead your office in an impromptu, team-building sing-along. & then you could use your Musical Ruler to underline your ever-growing To Do List!