Gehrkens, Karl W. <br/><br/>
Music notation and terminology / 
by Karl W Gehrkens. 
 - 1st ed.  reprinted 2021. 
 - New Delhi:  Global Vision Publishing House,   1914. 
 - vii, 210p. 
<br/><br/><label>ISBN: </label>9788194730033 
<br/><br/><label>Dewey Class. No.: </label>NR  / R1