What is that choral/ vocal warm that goes.....

Question

I was at a CMEA festival and one choir did this awesome warm up with numbers like 1,1,2,1,1,2,3,2,1,1,2,3,4,3,2,1,1,2,3,4,... does anyone know what I am talking about?

Answer 1

All they are doing is doing that do, do, re, do, do, re, mi, re, do thing. they add in a note every time they finish.

Answer 2

the first answer is correct- it's just a scale, adding on 1 note each time, so

C, CDC, CDEDC, CDEFEDC, CDEFGFEDC, CDEFGAGFEDC, CDEFGABAGFEDC, CDEFGABCBAGFEDC