Dear singers,
As per request of some of you, I found these practice videos on YouTube:
https://www.youtube.com/watch?v=lbd74vmQtq8 (alto)
https://youtu.be/KdYqT635opE?si=AgQCcR4LKOsG2X63 (sop)
https://www.youtube.com/watch?v=Zh22sWrtI-I (bass)
https://www.youtube.com/watch?v=WYILbMxEIfQ (tenor)
They’re also to be found on the Aid files section in the tabs corresponding to your own voice.