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![On This Day In Music 01/31/1969](https://static.wixstatic.com/media/0b1b5e_9c2d380adcad447ca49ba2833027c416~mv2.jpg/v1/fill/w_336,h_252,fp_0.50_0.50,q_90,enc_auto/0b1b5e_9c2d380adcad447ca49ba2833027c416~mv2.jpg)
On This Day In Music 01/31/1969
On this day in 1969, Led Zeppelin played the first of two nights at The Fillmore East, New York City during the band's first North Ameri
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![Iron Butterfly](https://static.wixstatic.com/media/0b1b5e_5fabb34c7be7412d92ba108112dd80ef~mv2.jpg/v1/fill/w_336,h_252,fp_0.50_0.50,q_90,enc_auto/0b1b5e_5fabb34c7be7412d92ba108112dd80ef~mv2.jpg)
Iron Butterfly
The heavy, psychedelic acid rock of Iron Butterfly may seem dated to some today, but the group was one of the first hard rock bands to...