I did several searches for this, with no result:
Just out of curiosity, does anybody know enough about the history of double bass methods to explain why the traditional classical numbering system has been hP, I, II, II/III (or II½), III, III/IV (or III½), IV, V, etc. instead of simply I, II, III, IV, V, VI, VII, etc.?
Just out of curiosity, does anybody know enough about the history of double bass methods to explain why the traditional classical numbering system has been hP, I, II, II/III (or II½), III, III/IV (or III½), IV, V, etc. instead of simply I, II, III, IV, V, VI, VII, etc.?

