How do I choose the right bassoon reed strength?

The right reed strength is determined mostly by player preference. Some players prefer softer reeds, and some prefer harder reeds. The strength of the reed affects the bassoon’s tone, responsiveness, and resistance. Bassoon reed strength is not standardized between makers, but most players begin with a strength that feels moderate and provides some resistance but plays easily still. In Legere reeds, that would be the Medium strength.