What are you trying to accomplish with warmups? If your routine is monotonous then you're probably not getting much out of it either.

 

You can use anything as a warmup as long as you're concentrating on your vocal production rather than the notes, which is why people generally use scales and other simple exercises. But it doesn't matter much what musical fragments you use. Change it every time. Try minor scales instead of major ones. Try simple tunes. Change vowels. I should hope that your voice teacher is giving you instructions about what you're intended to learn from the exercises. If s/he hasn't, ask!

Hi, Stacy.  That's a question that should go directly to your voice teacher.  Whatever warmups he or she has you doing, you can bet that they are chosen for more than one reason, and not being monotonous is not necessarily one of those reasons!  But do ask, because you should be learning how to work with and understand your own voice as well as how to work with other voices, if that turns out to be something you'll be doing in the future.

 

All the best,

 

John