Singing Pitch Trainer Range Increase your range up and down, by changing the key of the phrase and doing repetitions across your whole range, gradually stretching your ability to reach new highs and lows. Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26