Mexican troubadour Joan Sebastian wrote a wealth of regional romantic rhapsodies, weaving his soothing, inviting vocals through electrifying ranchera and soft-spoken Tejano music. “Secreto de Amor” starts as a moonlit, seductive bolero before it is swept up in a fervent chorus. Heart-stopping banda classic “Más Allá del Sol” is a declaration of undying love punctuated by ecstatic, eloquent brass.