Do your vocal warmups with piano accompaniment.
- Pick an exercise. (Suggestions for each exercise are included, but you can obviously use them any way you or your vocal coach see fit.)
- Pick a starting note from the keyboard or the musical staff in treble or bass clef. (The top note of the exercise will be displayed in orange).
- Select whether you want to transpose up or down a step when the exercise repeats.
- Press Play.
- Adjust the tempo to fit your needs.
You can change all of these options while it plays.
Don't let your intonation drift by trying to warm up a cappella. Have an accompanist in your pocket.