"Guitar Case" is the late rapper's second unreleased track to leak in as many weeks.

Mac Miller's posthumous catalog gained yet another new addition last night.

On the one-year anniversary of the rapper's death, the track "Guitar Case" surfaced on Soundcloud. Similar to last week's leak of "Good News," the track finds Miller in a somber mode, riffing on darkness and depression over traces of twangy guitars and sparse drums.

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"Guitar Case" arrived on the tail-end of a day filled with remembrances and commemorations in digital and physical spaces. Yesterday, his hometown of Pittsburgh saluted the late rapper with a pair of memorials. During the day, fans gathered at the iconic Blue Slide Park, bringing flowers and artwork to a site that lent its name to the rapper's debut studio album. At night, the Miller's longtime touring wingman, ClockworkDJ, threw a memorial show in honor of the rapper.

On social media, there was an outpouring of tributes and memories shared by close friends and collaborators. Thundercat was in a particularly sentimental mood, sharing the story behind surprising Mac at his now superlative Tiny Desk Concert performance for NPR and the changes he inspired in life and after death. Read it below.