WIKIPEDIA:

“ Steeleye Span are an English folk-rock band, formed in 1969 and still active today. Along with Fairport Convention they are amongst the best known acts of the British folk revival, and were among the most commercially successful, thanks to their hit singles "Gaudete" and "All Around My Hat". The band's name is a character in the song Horkstow Grange. They had three Top 40 albums. They achieved a certified gold record with sales of "All Around My Hat".
Throughout their long history, Steeleye Span have seen many personnel changes but has maintained a strong continuity of tradition. Lead vocalist Maddy Prior was one of the main attractions of the band's music, being one of a handful of strong-but-melodically-voiced women in rock music in the 1970s (along with Sandy Denny, Renaissance's Annie Haslam, Jacqui McShee, Linda Ronstadt, and Linda Thompson).
Their typical album is a collection of mostly traditional songs with one or two instrumental tracks of jigs and/or reels added; the traditional songs often include some of the Child ballads. In their later albums there has been an increased tendency to include music written by the band members, but they have never got completely away from traditional music, which draws upon [......] ”

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