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25 or 6 to 4 by Chicago

A Rock Band 3 chart.

Harmonix / Rock Band 3 / Official / Chicago II / 1970 / Classic Rock

On Expert Lead it scores D 53.89, Calc Tier 5, at or above 69% of the site’s Expert Guitar charts. On Expert Bass it scores D 11.49, Calc Tier 1, at or above 43% of the site’s Expert Bass charts. On Expert Keys it scores D 26.05, Calc Tier 3, at or above 79% of the site’s Expert Keys charts. On Expert Drums it scores D 18.89, Calc Tier 4, at or above 75% of the site’s Expert Drums charts. On Expert Vocals it scores D 10.27, Calc Tier 3, at or above 71% of the site’s Expert Vocals charts.

Difficulty graph of 25 or 6 to 4 by Chicago: notes per second, fret changes per second and their geometric mean over time

PartExpertHardMediumEasy
Lead Tier 553.8969%19.1254%7.2334%2.3217%
Bass Tier 111.4943%8.5143%3.9431%2.0534%
Keys Tier 326.0579%16.6989%4.9262%3.4192%
Drums Tier 418.8975%15.4673%10.5359%9.2781%
Vocals Tier 310.2771%

Ranked #5 of 82 songs in Rock Band 3 on Expert guitar, and #651 of the 2,257 songs on the site with an Expert guitar chart. 1,423 notes over 4:50, 4.9 a second on average.

Nearby on Expert guitar: harder: Caught in a Mosh by Anthrax (D 53.91, tier 5), Ernten, was wir saen by Die Fantastischen Vier (D 53.92, tier 5); easier: Electro Rock by Sworn (D 53.87, tier 5), Cliffs Of Dover by Eric Johnson (D 53.54, tier 5)

In Rock Band 3: harder: Caught in a Mosh by Anthrax (D 53.91, tier 5), Beast and the Harlot by Avenged Sevenfold (D 55.12, tier 5); easier: Free Bird by Lynyrd Skynyrd (D 47.58, tier 5), Llama by Phish (D 44.43, tier 5)

From Rock Band 3, whose every song is ranked by difficulty on its page.

D is the difficulty fretwork computes from the chart’s note density and movement, with the percentile among charts of the same instrument and level on the site and the Calc Tier anchored to the Expert chart; how it is scored and what the library holds. A number opens that chart’s graph.

Open in the table on Fretladder