Orta Velazquez, Guillermo  , 1909- <br/><br/>
Practicas de entonacion y solfeo 
/ Guillermo Orta V. 
 - 15a ed 
 - Mexico  : Olimpo  , [1979?] 
 - 83 p. pb.  : il. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Solfeo
<br/><br/><label>Dewey Class. No.: </label>784.94 ORT