A Song Across Wires (promoted by the hashtag #ASAW) is the ninth studio album by composer and electronica artist BT, released on August 16, 2013. This album features more vocal tracks as part of his alternate instrumental and vocal album productions. The album consists of 12 songs (along with a continuous mix of the original versions of these songs), was released in both digital and physical copies. On the album, BT collaborates with singers and producers of his previous album, These Hopeful Machines, such as Christian Burns and JES, as well as new ones, such as Arty, Nadia Ali, Aqualung, tyDi and more.
There have been four #1 Beatporttrance singles from BT's ninth artist album on the Beatport genre charts. The first single from the album, "Tomahawk", was released on October 31, 2011. "Must Be the Love" is the second album single, produced alongside Arty and Nadia Ali, and released on September 17, 2012. The official music video for the song premiered on February 22, 2013. The third single released from the album is "Skylarking", an instrumental track that appeared in Armin van Buuren's A State of Trance 2013 and came out on February 18, 2013, with its official music video being released on June 10, 2013. "Surrounded", the fourth single from A Song Across Wires, was released on July 15, 2013.
The official tracklist of the album was released by BT himself on July 10, 2013. The album trailer was released on August 3, 2013. Digital copies of the album contain a 79-minute DJ set of the full versions of each songs. A separate digital release, A Song Across Wires (Extended Versions), contains the original longer versions of each song, plus the continuous mix. Notably, Extended Versions features an extended mix of the previously released "Must Be the Love". The album itself contains "City Life", a song sung entirely in Korean, along with a new recording of BT's 1995 single "Anomaly - Calling Your Name", which was originally released under the name Libra presents Taylor and was featured in Mortal Kombat: Annihilation and American Pie.