Whenever he’s not holding down the internet as the chillest guitarist in the band, producer-musician Steve Lacy is fiddling with his own music, famously making beats with his iPhone. Collaborating with artists like Vampire Weekend, Tyler, the Creator, Kali Uchis, and Kendrick Lamar, he’s become a near-ubiquitous fixture of the contemporary R&B and pop scene. While in his other work, Lacy owes much to neo-soul, his debut solo album, Apollo XXI, is decidedly less funky, shimmering instead like a collection of guitar-focused, lo-fi indie tracks. by Jas Keimig