They were inspired by the keyboard work of Kraftwerk, Devo, Sparks and The Screamers.

Entity and relation annotations:
id: 0
type: entity
value: text: Kraftwerk
labels: <Organization>
id: 1
type: entity
value: text: Devo
labels: <Organization>
id: 2
type: entity
value: text: Sparks
labels: <Organization>
id: 3
type: entity
value: text: The Screamers
labels: <Organization>