This piece was created using just Audacity, an open source audio editing software. No synthesizers, no samples, no external effects.
https://www.audacityteam.org/
https://joinfriendica.de/profile/logorok
https://social.tchncs.de/@logorok
https://pixelfed.de/i/web/profile/426284979867925459
https://logorok.bandcamp.com/
https://www.logorok.de