Spektralmaskin (Norwegian for spectral machine) is the duo of experimental Norwegian microtonal tuba player Peder Simonsen (of the experimental microtonal tuba trio, Microtub) and guitarist Jo David Meyer Lysne. It owes its name to a sort of prospecting: the process of sliding e-bows—small magnetic motors of adjustable speeds used to sustain sounds, here of Lysne’s own design—along guitar strings to produce harmonics. As these harmonics can occur erratically, the technique rewards the musician patient enough to scoot the e-bow about the string, waiting for the delicate sounds to crest.
Spektralmaskin II is the second album of this duo that began working in 2020, following Spektralmaskin (Sofa, 2024). The duo also did a sound installation, For Mechanical Brass & Magnetic Strings (2025), presented at the
