Dash Crofts, the singer and guitarist of the 1970s soft-rock duo Seals and Crofts, has died at age 85. The duo's songs "Summer Breeze" and "Diamond Girl" became pop culture mainstays during the 1970s. This obituary is based on reporting by Pitchfork (https://pitchfork.com/news/dash-crofts-singer-guitarist-in-soft-rock-duo-seals-and-crofts-dies-at-85/). The news fits a continuing pattern of artists who shaped the soft-rock and singer-songwriter era of the 1970s reaching the end of their lives in the current decade, as seen with prior losses of musicians from that period.