Once you are comfortable with the one octave scales it's time to start expanding your range. Extending your scale practice to two octaves is a great way to increase your range both into the lower octaves and higher ones.
As with one-octave scales - memorize these two-octave scales and arpeggios. Once you have these memorized, play them in different ways, using different rhythms. Make up your own tunes in each of the keys using the scale and arpeggios.
And, as always when practicing or performing, play with the best possible sound. Don't accept anything less. In addition to the tips given for the one octave scales, here are some things to think about:
- Use your ear and a tuner.
One of the signs of of a mature musician is that they play in tune not only with others, but also with themselves. Use your tuner to check your intervals, particularly on the minor scales.
You don't have to be an opera star in order to sing. Singing these scales will help you to hear the intervals even better - and your ear will then listen better when you play then on the trombone. The more accurately you can sing these scales, the better you will play them.
- Try different articulations.
At this stage in your musical growth you should be playing yoru scales everywhere from legato to staccato. Also try mixing up the articulations for each scale. Slur two notes, then tongue two all the way up and down.
- Try different dynamic levels.
Play your scales at different dynamic levels. You will find it is more difficult to play in some registers at various dunamic levels. Work with your teacher to produce a characteristic and consistent tone over the whole range of your trombone, and at all dynamic levels.