Scales by numbers (long)

Sing: Repeat and develop by:
 * speeding up, emphasising diction
 * singing ppp with a loud spike on the top of each run — fun because this leads to some tricky syncopation and someone always loses count:
 * repeating the above, but completely silent except for the spike
 * using a harmonic minor scale — slow down to concentrate on tuning the 7th of the scale
 * dividing into eight groups (e.g. SSAATTBB) and allocate one number to each
 * missing out every number 3 / 4 / prime number / multiple of 3 / whatever
 * inverting:
 * combining the normal and inverted versions
 * using the twelve notes of the chromatic scale (this is hard even for a good group, so do it slowly for precision and emphasise the use of anchor notes):