Possible Clues:

• Key that's never used alone: Abbr
• — -C (PC copy command)
• Computer key used in shortcuts
• SZA album that shares a name with a PC key
• 2017 double-platinum debut album for SZA
• Part of many commands: Abbr
• ___ Alt Del
• Key in computer combos
• SZA's debut album
• Key in a PC reboot combo