I Must Not Think Bleak Thoughts is an album by Perfect Vacuum, released in 2019. The album is a experimental music LP.

• Side Thisthing
• A1 Maybe Some Bach
• A2 Apres La Deluge
• A3 Ratopolis
• A4 The Arp Lovers
• A5 Asphalt Yeah
• A6 55 Years Ago
• Side Thatthing
• B1 She's So Angry
• B2 Bolidoli
• B3 No Callers
• B4 Strange Pomtato
• B5 Gold Features