B7 in 2nd bar should be a G7(b9b5) notes in descending order: Db, Ab,F,B,G followed by a G7+: G,Eb,B,F followed by C9(#11) C,F#,D,Bb,E. That's a Bbmaj7 in bar 5 (and lot of other bars), and beat 2 of bar 8 is an Fm7 (Bb in that voicing should be an Ab). I'll stop there.
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B7 in 2nd bar should be a G7(b9b5) notes in descending order: Db, Ab,F,B,G followed by a G7+: G,Eb,B,F followed by C9(#11) C,F#,D,Bb,E. That's a Bbmaj7 in bar 5 (and lot of other bars), and beat 2 of bar 8 is an Fm7 (Bb in that voicing should be an Ab). I'll stop there.