Y

Y Connector
A lead that is split so that one source can feed two outputs, or a lead with a stereo jack plug at one end split into two mono connectors at the other (as used for mixing console insert points).

When a songwriter dies, the minute you read the list of songs he wrote, you start to identify with him - "Oh, my God, he wrote that. I remember the first time I heard that song, I was at a dance with a girl."”
Abel Green