Advertising and marketing services, namely, promoting the goods and services of others; Distributorships in the field of electronic music files; Marketing services; Marketing the goods and services of others by distributing music files to online streaming services and stores; Operating on-line marketplaces featuring digital music; Providing advertising, marketing and promotional services, namely, development of advertising campaigns for online streaming services and stores; Provision of an on-line marketplace for buyers and sellers of goods and services; Provision of an online marketplace for buyers and sellers of downloadable digital music authenticated by non-fungible tokens (NFTs)