Evaluation levels of countries (self-choice levels)

A = Austrian wind music catalogue

A1: level A
A2: level B
A3: level C
A4: level D
A5: level E

C = Swiss self-choice pieces

C1: 4th class
C2: 3rd class
C3: 2nd class
C4: 1st class
C5: highest class

D = German evaluation pieces

D1: entry level
D2: lower level
D3: medium level
D4: upper level
D5: highest level
D6: highest class

CISM = Self-choice pieces of Bohemian-Moravian wind music

C: intermediate level (moderately difficult)
B: upper level (difficult)
A: highest level (very difficult)