Casio SA-1 Black 32key Keyboard mini Synth 1989 Japan in Box EC | Reverb
Music Instruments Thin Line Icon Set for Web and Mobile. Stock Vector - Illustration of keyboards, karaoke: 77198015
My Little Pony: Tribal Rendition (videoscore) Sheet music for Flute, Triangle, Synthesizer, Conga (Mixed Quartet) | Musescore.com
Yamaha YFL-200ADII Advantage Flute
Forgive me Lord, For I have Synth: A Guide to Subtractive Synthesis | Zeroes and Ones
What waveforms do acoustic instruments produce? Violins are kinda like saws, flutes are sines and here's a kalimba sample looking like a triangle wave : r/synthesizers