This job is an old stripes for skill position that is highly competitive. Upon section and completion of basic training you earn the grade of E-6.
Vacancies are rare and listed on the internet and in the musician trade magazines.
Pre-screened Audio recording and resume for a panel
ASVAB Testing and Physical follows upon invitation.
Blind 1st Round audition of prepared music and some basic sight reading
Select individuals make second round in front of panel
Upon conclusion of music the panel leads a basic interview
If the standard is met, basically, if you can improve the organization, you may be offered a position.