YouTube, long renowned for its vast video library, has quietly established itself as a formidable music streaming service. Its dedicated app, YouTube Music, offers a curated collection of songs, albums, and podcasts catering to various music lovers.

YouTube is introducing the ability for users to incorporate or “remix” a music video in their short-form videos, called Shorts, as the company continues to challenge TikTok. Given that YouTube has something that TikTok doesn’t, which is a vast ...