Odaily News Web3 streaming protocol Sona completed a $6.9 million seed round of financing, with participation from Polychain Capital, Haun Ventures and Rogue Capital. Additionally, Sona announced the launch of its first product, Sona Stream, a free music streaming service with no subscriptions or ads, as well as a marketplace where artists can share music and auction SONA (song-corresponding numbers) Assets can only be owned by one person at a time). According to reports, Sona uses modules built on DeFi to provide artists with token-based streaming content, music auctions, governance rewards and other services, and distributes the income from music auctions to artists and platforms in a certain proportion. (TechCrunch)