Mixing from 4A to 4B

How to mix this transition

Blend this transition over 16–32 bars to let the relative major/minor shift breathe—rushing it flattens the mood change. Bring the incoming A♭ Major track in on a phrase boundary, ideally at a breakdown or after a drum fill, so the harmonic swap doesn't collide with rhythmic tension. Use a high-pass filter sweep on the outgoing F Minor track to thin its low end as you introduce the brighter track; this prevents muddiness from overlapping bass frequencies in the shared key signature. Avoid EQ-killing the incoming track's mids—the major third and sixth are what sell the brightness, and cutting them defeats the purpose.