Mixing from 11B to 3B

How to mix this transition

Treat this as a full key swap, not a blend. Bring in the 3B track at a phrase boundary in 11B — ideally after an 8 or 16-bar section closes — to let the ear accept the tonal shift as intentional. Use a 2–4 bar overlap where you kill the low end and mids of 11B while bringing 3B in dry and centered; this prevents harmonic mud. EQ is your main tool: high-pass the outgoing track and let the new track's fundamental frequencies establish dominance. Avoid riding the crossfader slowly; a quicker, cleaner swap reads better and prevents the transition from sounding accidental.