The Music Stem / The Musician's Library / Composer's Handbook / Additive Meter
Composer's Handbook
Additive meter builds a bar from unequal groups of twos and threes.
Compose in 7/8 grouped 2+2+3 and make the grouping audible.
Accent eighth notes 1, 3 and 5: ONE-two THREE-four FIVE-six-seven.
Tchaikovsky, Symphony No. 6, second movement (5/4)