Browser saving isn't available in this preview environment — open this file locally or host it on a site and saves will persist. The .json export/import buttons work everywhere, and are also how you move progressions between devices.
Play the triads up the scale in order, then back down. Keep a steady pulse and let each chord ring for a full beat before moving. The shapes shift along the neck as the scale climbs — watch how each quality change (major, minor, diminished) feels under the hand.
Tap every note in your riff or melody — the root stays selected automatically. Scales built on that root which contain all of your notes appear below; close matches show which single note falls outside.