Check the listing for details. On-Stage Stands MSA7011 U-mount Clamp-On Bookplate. Condition: New. Listed at 40.95 USD. Keep Lyrics and Setlists Close at Hand It’s easier than ever to turn your mic stand into a music stand with the MAS7011 U-mount clamp-on bookplate from On-Stage. Outfitted with a patented U-mount design, this accessory attaches easily to tube stands up to 3/4-inch in width with its 9-inch mounting bar. Its rigid, black steel design boasts a 1-inch lip, giving your sheet music, set list, lyrics, phone, and more a dedicated home onstage! The tiltable and rotating design means that you can always keep your references at an angle that works best for your performance, whether sitting down with your instrument or standing at your loop station. Performing musicians around Sweetwater can’t say enough about the convenience of the MSA7011 bookplate for performances small and large.