motivational, positive, acoustic optimistic, fun, children, guitar, summer, kids, ukulele, advertising, happy, success, catchy, cheerful, folk, energetic, background, piano
激励，积极，声学乐观，乐趣，儿童，吉他，夏天，孩子，尤克里里，广告，快乐，成功，朗朗上口，开朗，民谣，精力充沛，背景，钢琴