Advertising is nothing more than reminding people that your company exists and why they should buy your product or service, or use it again.
Effective advertising means getting people's attention, and causing them to remember your message. That can be done with jingles, good copy, and sound effects.
Do you remember the Coke commercial from the early 70's, featuring, "I'd Like To Teach The World to Sing?" It's been over 50 years since that spot ran, and I bet most of you reading this remember it! Here's a clip of it: