Chicago

On July 21, 1970, Chicago was on the verge of significant commercial success, having just released their album "Chicago II" earlier that year in January. This album featured iconic songs such as "25 or 6 to 4," which became a defining hit for the band and was performed during the live recording at Tanglewood. At this time, Chicago was transforming from a jazz-rock outfit into a mainstream pop sensation, characterized by their blend of horns and rock elements. The band had recently garnered attention with their self-titled debut album, which laid the groundwork for their evolving sound. The performance at Tanglewood illustrates not only their energetic live show but also marks a pivotal moment in their career when they began to capture the broader audience and solidify their place in rock history. Terry Kath’s guitar work and Robert Lamm's strong vocals contributed significantly to the band's distinctive sound during this formative period.

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