Tuning: Get a free tuning app and work on playing with a tuner during some of your practice. Use the chart below to see what note you play and what it shows on the tuner. As an example, when you play a C, it should show as a Bb on the tuner. If you play an D it is C, or a E it is D. The way you figure this out is to look all the way to the left (on the C instruments side) in the same row of the note you are playing on the Eb instruments side. There are many free tuners, but I suggest paying a small fee ($3.99) to purchase the "
Tonal Energy" app which is a really helpful tool to use while practicing.