Carol Love watches the tides at a Vancouver Island lagoon, and when the time is right, she starts to play her violin.

She plays for an audience of one, a killer whale calf that has been trapped alone in the lagoon for almost a month.

Preparations for more conventional efforts to save the whale continue, involving a large fishing net.

But Love, from Nanaimo, B.C., stands and plays on a bridge at high tide, hoping her music entices the young orca to swim through a narrow channel, under the bridge an…