Airfoil - Rogue AmoebaAny audio, everywhere Stream any audio from your Mac all around your network. Send music services like Spotify or web-based audio like Pandora wirelessly to all sorts of devices, including the Apple TV, HomePod, Google Chromecast, Sonos devices, and Bluetooth speakers. You can even send to iOS devices and other computers. Any audio on your Mac can now be heard throughout your house! Send From Any
AirMac Expressと『RaopX』でiTunes以外の音楽もリモートで聞く事ができる | ライフハッカー・ジャパン
iTunes for Mac まとめ
複数のパソコンで簡単にiTunesを同期できる『MediaRover』 | ライフハッカー・ジャパン
