Certainly. The phrase (German for "Yours is my whole heart") refers to a famous tenor aria from the operetta Das Land des Lächelns ( The Land of Smiles ) by composer Franz Lehár (1870–1948).
When paired with (the International Music Library Score Project, or Petrucci Music Library), the user is likely searching for a public domain score of this aria on IMSLP. dein ist mein ganzes herz imslp
If you need the or a specific score preview , let me know, and I can guide you further (though I cannot directly fetch live URLs, I can describe the exact page path on IMSLP). Certainly
The aria is Lehár’s most famous tenor piece — lush, passionate, and soaring to a climactic high B-flat. It is the successor to “Dein ist mein ganzes Herz” ’s predecessor, “Wo die Lerche singt” in style, and it remains a staple of the operatic tenor repertoire, often performed in concerts and recitals as “You Are My Heart’s Delight” (English version). If you need the or a specific score