Yamaha DTX-PRO Reference Manual page 106

Practicing with the Training Feature
3. SONG PART GATE
Song Part Gate is a practical exercise for practicing one part or one section of the training song at a time. You can select a part for working
intensively on a specific phrase or to work on independent hand/foot coordination, for example, in order to learn the essential part of the
training song. Practice your drumming skills with other training exercises before trying Song Part Gate. Then try Song Score Gate
(page 107) to play through all sections of the training song.
The score (PDF) is available at the Yamaha website:
https://download.yamaha.com/
After accessing the Support website (and clicking on "Manual Library"), enter the appropriate model name.
What you can do during training:
Training song
 To change the training song or the part to practice:
Use the buttons below "
to select a training song or a section.
Here, you can only use training songs 1 to 10.
The score is shown at the end of the phrase before it repeats.
" and " " ([F2] and [F3]) to move the cursor, then use the [–] [+] controllers
Part to practice
DTX-PRO DTX-PROX Reference Manual 106