1-HUM
[audio src="http://www.thanhnhac.com/myChoir/Composers/Warmups/15minForGuys/1-Hum.mp3" preload="none" controls="controls"]

2-HUM-AH

3-YA

4-Lips Trill

5-MUM Extended

6-Mi-e-a-mi

7-iêêa iêếêê êêaaôu