To achieve a beautifully blended choral sound, you want all your choristers to produce vowel sounds the same way. 

Taking the time to practise each vowel sound should make a big difference to the blend and tone of your choir. 

Try to incorporate each of the 5 pure vowel sounds: ah, eh, ih, orh and ooh. 

Remember to emphasise a tall mouth shape and to keep the vowel sound consistent as the note is held.

The following 4 videos have been provided as examples of exercises you can do with your choir to create uniform vowels.