Place it at the beat where a message is revealed, then follow it with a Discord Calling Sound if the chat turns into a call, or a Sitcom Laugh Track when the reply is the joke.
このサウンドについて
This under-one-second clip is the bright digital chime played for a new message, a quick two-note ping that cuts in and out fast. It feels playful and instantly familiar, sparking a small jolt of recognition and a smile at old desktop chats. It comes from MSN Messenger, the Windows instant-messaging service millions used through the 2000s.