***IMPORTANT NOTE ABOUT GLASS AVAILABILITY - This tutorial calls for the use of Double Helix "Nyx". This glass has been discontinued. Okeanos Or Psyche, by Double Helix Glass Works, is a nice substitute.
Davinci 2 by Precision, has also been discontinued. A good sub for it, is Raku or Opaque versions of Striking Color Glass***
Harmonic Hearts is a collection of three tutorials, including step by step directions on how to create the Moonlight Waltz Heart, Plutonic Love Heart and the Sunset Opal Heart. Due to their complexity, these tutorials are written for advanced level lampworkers. Each bead requires four to five different “silvered glasses”, so prior experience working in a reduction flame is recommended. Raking, layering, shaping, and stringer control are additional recommended skill sets.