Butterfield font (Scriptorium Library). Click on the font picture to buy the font.
Butterfield is based on poster lettering from posters for rock shows at the Fillmore in the 1960s. It is particularly influenced by the lettering of Wes Wilson, but has added features and improvements to make it more generally useful. It is one of the most effective examples of the psychedelic style.
Combining the basic font with Photoshop’s wave pattern produces the unique look seen above.