— "Brotherly Love" is a known phrase (e.g., the song by The Everly Brothers or 90s country duo), and "Blake Rose" is the name of a contemporary Australian singer-songwriter (known for songs like "Lost"). However, he doesn't have a released track titled "Brotherly Love." Could be an unofficial remix/mashup or misremembered title.

— often involving original or character-driven romance/drama with themes of brotherly love, possibly featuring characters named Blake and Rose. Sites like Archive of Our Own (AO3) or Wattpad have many such combinations.

— Someone online might go by "Blake Rose" and have a video, artwork, or post titled "Brotherly Love."