[7] They began recording a third album before a lawsuit by Pan Am, owing to the use of their logo in the artwork of Contact, forced the end of the group and its label Kapp in 1970.

[7] In the 1990s, German bootleg recordings of the band's albums raised their profile, and Simeon reformed the group with other musicians and released new music.

Simeon was the singer, but began to incorporate a 1940s vintage audio oscillator into the show, which alienated the other band members to the extent that the group was eventually reduced to the duo of Simeon and Taylor, at which point they renamed themselves The Silver Apples, after the William Butler Yeats poem "The Song of Wandering Aengus".

Simeon devised a system of telegraph keys and pedals to control tonality and chord changes, and reportedly never learned to play traditional piano-styled keyboards or synthesizers.

Warren, who subsequently became a published poet, met Simeon and Taylor at the Fifth Annual Avant Garde Arts Festival in 1967 in New York City, organized by Charlotte Moorman, who was famous as the "topless cellist".

[citation needed] Inspired by Simeon's interest, in the next few months Warren wrote the remaining six songs used on the Silver Apples album.

Silver Apples / Simeon performed at, among others, All Tomorrow's Parties (Minehead, UK, December 2007); Electric Picnic, Stradbally, Ireland (September 2008); All Tomorrow's Parties, Australia (January 2009), The Unit, Tokyo, (July 2009); Oscillations Music + Arts Festival, Belfast, Northern Ireland (September 2009); Austin Psych Fest 3, TX (April 2010); Albuquerque Experimental, Albuquerque, NM (October 2010), Beijing, Shanghai and Guangzhou (May 2011), London, England iTunes Festival (July 2011), RecBeat festival, in Recife, Brazil (February 2012) and Incubate, Netherlands (September, 2012), Mountain Oasis Electronic Music Summit, Asheville, NC (October, 2013), Audioscope 14 in Oxford, UK (November 2014).

Stereo Glasgow, UK (November 2014)[citation needed] In October 2011, Simeon performed as Silver-Qluster, a collaboration with Cluster frontman Hans-Joachim Roedelius, in ATP I'll Be Your Mirror Festival in Asbury Park, NJ.

John Lennon endorsed the group while appearing on a television broadcast in 1968, saying to "[w]atch out for a band called Silver Apples, they are the next thing.

"[22] Alan Vega of Suicide listed Silver Apples as one of his core inspirations that led him to form the group in the early 1970s.

[23][24] Groups and artists influenced by Silver Apples include Radiohead,[25] Portishead,[2] Beck,[17] Moby[26] and Beastie Boys,[17] as well as bands from the first wave of post-rock such as Stereolab,[2] Spiritualized,[2] and Laika.