DD passed grade 5 flute last summer. She seems to have managed to get to grade 5 with very little effort - just one half hour lesson a week and about 20 minutes a week practicing. She seems to have some ability, but no inclination. I don't think she'll make grade 6 next summer (she could if she suddenly started practicing, but that seems highly unlikely and she hasn't taken any theory exams) She has, however, expressed an interest in jazz flute. I didn't even know this was a thing until DD mentioned it.
If she made a sideways step to jazz flute would she be able to play at grade 5 level or would she need to start at a lower level and work up? Is there anything we should know about jazz flute? ABRSM don't seem to have updated their jazz flute book since 2006, so I assume it's not very popular.