head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
A playable pop album blending rhythm, racing, and shooting into a forgiving stylish ride.

Execution · Pure Mechanics
A lovingly curated Beatles career retrospective playable as a full band with vocal harmonies.
Sayonara Wild Hearts leans Execution (Practiced Mastery); The Beatles: Rock Band leans Execution (Pure Mechanics).
The Beatles: Rock Band leans a little harder on execution, though the gap is small.
Sayonara Wild Hearts
Moderate dodging and timing, deliberately forgiving
The Beatles: Rock Band
Gentler charts plus three-part vocal harmonies
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Sayonara Wild Hearts
Scripted pop-album set pieces
The Beatles: Rock Band
Nothing adapts
Sayonara Wild Hearts leans a little harder on variance, though the gap is small.
Sayonara Wild Hearts
Fixed levels with memorizable layouts
The Beatles: Rock Band
Fixed charts
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Sayonara Wild Hearts
Gold-rank score chasing rewards route learning
The Beatles: Rock Band
Harmony arrangement and overdrive timing
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.