https://soundcloud.com/dowsermagicmemo/knot

https://soundcloud.com/dowsermagicmemo/torus

https://soundcloud.com/dowsermagicmemo/arc

https://soundcloud.com/dowsermagicmemo/sector

https://soundcloud.com/dowsermagicmemo/annulus

https://soundcloud.com/dowsermagicmemo/rhombus