In addition to John Williams’ new, original theme for the title character, composer John Powell has adapted some of Williams’ existing Star Wars motifs in his score for Solo: A Star Wars Story. Here’s how both composers are officially credited in the movie’s new poster:
Han Solo Theme and Original Star Wars Music by John Williams
Score composed and adapted by John Powell
The film’s score is currently being mixed at Skywalker Sound, according to a tweet from director Ron Howard:
https://twitter.com/RealRonHoward/status/982963767561433088