Siel Orchestra

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Siel Orchestra 2

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Page last updated May 18, 2026

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Videos

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AnalogAudio1

SIEL ORCHESTRA String Machine 1979 | HD DEMO

AnalogAudio1

Siel Orchestra repair tips and quick demo

sounddoctorin

SIEL Orchestra (ARP Quartet)

ohm_studi_ohm

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Critic Reviews

Siel Orchestra | Vintage Synth Explorer

vintagesynth.com

The Siel Orchestra offers a vintage charm with its classic analog tones across four preset sections: Brass, Strings, Organ, and Piano. While it delivers quality sounds, especially praised for its string section used by iconic bands like 808 State and Massive Attack, the synth falls short in flexibility. It lacks external control and features limited editing capabilities, with no pitch/mod wheel available. Despite these drawbacks, its sound quality remains appealing to enthusiasts of classic synthesis. Overall, the Siel Orchestra is a nostalgic piece that excels in sound but is hindered by its lack of modern control features.

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Adrian Utley

Guitarist, Keyboardist

Portishead

Verified via YouTube

Around the 9:03 mark in the attached video Adrian is asked "were there any defining pieces of technogy that kind of made tracks happen?"

He replies that he had used a Siel but couldn't remember the name of it. Then, a bit later he recals it was the Siel Orchestra. "Yeah, a Siel Orchestra" at about 9:44 of the video.

John Baggott

Keyboardist

Robert Plant and the Strange Sensation

Verified via Sound On Sound

Used live, as stated by bandmate Adrian Utley in this November 2008 Sound on Sound interview.

A Portishead performance is always an event, and the band have been unusually active on the live front this year. "It's the same line–up as in the past," explains Adrian Utley. "Clive Deamer is on drumkit (and the back of a guitar for 'Nylon Smile'). John Baggott is on keyboards — Akai sampler, Fender Rhodes, Hammond clone, Siel Orchestra, Minimoog, Roland SH09 for the Theremin-type sounds (which I did on SH101 for Dummy and then on an SH09 live, then a Mini). Jim Barr is on bass — and guitar, because there's quite a lot of double guitar parts, and even Minimoog on 'We Carry On'. Geoff [Barrow] stands up playing drums. He's got a cocktail kit, which was a bit of a revelation, really. There's a stand–up kind–of tom, that's long, with a bass drum pedal which hits the bottom of the tom, and the top is like a floor tom. They often come with a little snare and crappy stuff, but he's added a proper snare, and he uses trigger pads.