"Round and Round and Round..."

Paging through journal entries (adding tags for sheet music links and class notes), I realized I'd never (publicly) posted links to sheet music for the Rounds class from Musicians' Day 2010.      

( Rounds from a past class )

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( Ravenscroft facsimiles )

ETA:   Aaaaaand I found a copy of Guido d'Arezzo's Ut Queant Laxis:
http://musicaviva.com/sheetmusic/score.html?vivaid=ut-queant-laxis
or  http://en.wikipedia.org/wiki/Ut_queant_laxis