It's also possible to use the 7th chord as the dominant of other chords. For example, in F major, we could use G7 as the "dominant of the dominant". The notes of the G7 lead to C, which itself can then lead as a Dominant chord back to the tonic F.
The ukulele is one of the easiest instruments for students of all ages to pick up and play. Make fast progress and get hooked on the ukulele with these simple 2 chord songs in the key of C. Even kids will be able to play these 3 easy ukulele songs! Easy Ukulele Songs with 2 Chords. Chord diagrams for C and G7 are all that you need to get started. G7 Glass Reinforced Silicone - natural (cream to white) Technical Data Sheet Chemical Resistance Chart Composed of a continuous glass woven cloth base impregnated with a silicone resin binder, this grade has excellent heat and arc resistance.