Iron Maiden released The Soundhouse Tapes in the UK on November 9, 1979, through their own Rock Hard Records label. Their first official vinyl release put three songs on a seven-inch EP: “Iron Maiden,” “Invasion” and “Prowler.” The music had already been circulating as a demo, helping the band reach listeners before there was a Maiden record to buy.
The sessions took place at Spaceward Studios in Cambridge on December 30 and 31, 1978, with Paul Di’Anno singing, Dave Murray playing guitar, Steve Harris on bass and Doug Sampson on drums. They went in with practical goals. Di’Anno recalled in Michael Hann’s Denim and Leather, excerpted by Rock Candy, that the tape was intended for record companies and promoters who might book them beyond their existing circuit. “Number two was to see if we could get some work,” he said.
Money limited what they could do afterward. Harris and Murray recalled in the band’s The Early Days documentary that they couldn’t afford to buy the multitrack tape from the studio. “It was only £50, but we’d used all our money,” Harris said, in remarks reproduced by Metal Hammer. When they returned, he recalled, the tape had been reused. That left them with the mix they had taken away, closing off the opportunity to revisit individual parts before putting the recordings out.
DJ Neal Kay gave that tape a route to an audience. At the Bandwagon Soundhouse in Kingsbury, north London, he played demos alongside established rock records. His request chart also appeared in Sounds, allowing a local club’s enthusiasm to reach readers elsewhere. Kay recalled in Hann’s book that the newspaper identified demo recordings as demos, encouraging other bands to send him their tapes. For Maiden, “Prowler” reached No. 1 on the Soundhouse chart. A club request chart had given an unsigned band a visible place among the records its audience wanted to hear.
The EP’s name acknowledged that support, and Kay’s involvement extended to its sleeve notes. Harris handled the label and sleeve design. The record carried a dedication to Maiden fans everywhere, fitting the direct relationship behind its release: people were coming to shows and asking how they could get the music.
Maiden had recorded four songs at Spaceward. “Strange World” stayed off the EP because they weren’t satisfied with its recording, leaving “Iron Maiden” on one side and “Invasion” and “Prowler” on the other. The original run was limited to 5,000 copies, distributed by mail order. In Mick Wall’s authorized biography, manager Rod Smallwood recalled turning down requests from major retailers because the band wanted to preserve that limited release for the fans who had ordered it.
The demo had also reached Smallwood and helped set the band on the path to their EMI deal. The songs continued into the next stage of Maiden’s recording career: “Prowler” and “Iron Maiden” were rerecorded for their self-titled debut album in 1980, alongside a new version of “Strange World.” “Invasion” also received another recording, appearing as the B-side of “Women in Uniform” that year. All four Spaceward songs made it onto subsequent Maiden releases, even though only three had appeared on The Soundhouse Tapes.
