The 1940s-era hand-lettered title on vintage sheet music for the tune struck "Donkey Serenade" had an analysis of the traditional typeface "Broadway" used in a Mexican/Southwest theme with wavy lines cutting through the letters.
Adapting Playwright JNL (itself, a hand-lettered analysis of "Broadway") to this style, the festive design is now a digital typeface called Southwest Serenade JNL.
Font Family: Southwest Serenade JNL Regular