Kraft German Singles

Wikipedia: The song "Ruckzuck" is driven by a powerful multi-dubbed flute riff, along with electric violin and guitar; these instruments often connected to further electronics via an Electronic Music Studios pitch-to-voltage converter.

The album tracks are all instrumentals, of which, "Ruckzuck" and "Stratovarius" are closest to a rock music approach in style. "Ruckzuck" has a tightly arranged opening section that includes a dramatic change of tempo, before an extended and largely percussive middle section, with an even faster reprise of the opening theme to end the piece.

... "Ruckzuck" was used as the theme song for the defunct PBS show Newton's Apple in the United States. It was used without permission. Later episodes of the show feature an unknown cover version of the song.

Seclusion

The band is notoriously reclusive; providing rare and enigmatic interviews, using life-size mannequins and robots to conduct official photo shoots, refusing to accept mail and not allowing visitors at Kling Klang Studio, whose precise location they used to keep secret. Another notable example of this eccentric behavior was reported to Johnny Marr of The Smiths by Karl Bartos, who explained that anyone trying to contact the band for collaboration would be told the studio telephone did not have a ringer, since during recording, the band did not like to hear any kind of noise pollution. Instead, callers were instructed to phone the studio precisely at a certain time, whereupon the phone would be answered by Ralf Hütter, despite never hearing the phone ring.^[39] Chris Martin, lead singer of UK group Coldplay, anecdotally recalled, in a late 2007 article in Q about Kraftwerk, the process of requesting permission to use the melody from the track "Computer Love" in its 2005 release "Talk" from its album X&Y. He recalled writing them a letter and sending it through the lawyers of the respective parties and several weeks later receiving an envelope containing a handwritten reply that simply said 'yes'.^[40]