CEOs

1. Head Abecedarian

1.1. Music Knowledge Teachers

1.2. Simple Music Teachers

2. Head Advanced Teacher

2.1. Improvisation Teachers

2.2. Music Knowledge Teachers

3. Head Senior Teacher

3.1. Riff Teahcers

3.2. Classical Music Teachers

3.3. Modern Music Teahcers

4. Manager

4.1. Contacters

4.2. Instrument Checkers

4.3. Accountaries