If you could find a good data source, you could also look at FM rock popularity. For example, Jethro Tull was ubiquitous on FM rock for most of the 1970s, but seems less remembered today than less popular bands at the time like Black Sabbath.
If you could find a good data source, you could also look at FM rock popularity. For example, Jethro Tull was ubiquitous on FM rock for most of the 1970s, but seems less remembered today than less popular bands at the time like Black Sabbath.
If you could find a good data source, you could also look at FM rock popularity. For example, Jethro Tull was ubiquitous on FM rock for most of the 1970s, but seems less remembered today than less popular bands at the time like Black Sabbath.