Free streaming music sorted by urban scene? Powered by SoundCloud and packaged in a slick UI, CitySounds—dubbed ‘the music of cities’—is just that. Uploads are pushed to CitySounds in realtime—the music is fresh. Flickr adds style to the mix by displaying related photos. Listeners can see the most active cities, the most popular genres in each, and can support their favorite cities. Top genres in London for example are Dubstep, House, and DnB.

Artists can get their music on the site by uploading it to SoundCloud. CitySounds launched last summer and released a 99-cent iPhone App earlier this year rated 2.5 stars on iTunes. The underlying idea is awesome, as is its execution so far. Looking to discover new music…then why wouldn’t you want to search local? The flip side is you can travel the world via music.

Social Rocks.

The stage is lit—music has always been social, and the web continues to make it even more so. Communication is on the rise. People want to share and “everyone who shares is an influencer.” Music discovery is powered by your friends and by recommendation engines—the technology is only getting smarter, and, in their case, everyone who listens is an influencer. Web apps like Blip.fm and Twisten.fm rely nearly entirely on friend-powered playlists and realtime recommendations. Music streamers crave sharing, simplicity, and depths of controls for customizing their listening experiences.

Shareability and community spin music in the social web. Pandora and Last.fm’s widely popular iPhone apps encourage users to share songs they like with their friends as they’re listening to them. Grooveshark’s web interface heavily encourages sharing, and its integration with Twitter via Twisten.fm and Tinysong have helped fuel its rapid growth in 2009. Nearly all of today’s free (ad-supported) streaming sites include links to purchase mp3′s via iTunes or Amazon. Vevo has them, but, YouTube—arguably the largest and most engaging music streaming site—does not.

The Delicious user base has a relatively high concentration of developers, designers, techies, nerds, etc.—individuals likely to have above-average internet savvy. As a group they are an acute filter for quality content. The chart below shows the popularity of the same music websites based on data from Delicious. You can see there is some divergence from the traffic heat map. The most notable difference is MySpace Music, which showed the highest website traffic, but shows the lowest Delicious rank. Pandora is the top-bookmarked music site on Delicious by far, with last.fm second, and Grooveshark climbing quickly. Pandora is also the top-ranked music site on Xmarks.

Musicians—many are at the center of the social mix lifecasting on Twitter, Ustream, YouTube, Facebook, and MySpace. They’re communicating like never before, and evolving the industry. Revenue comes in new forms. The urge to be “indie” is contagious. The amplifiers are on.

Mobility Rolls.

Seven of the top twelve are radio/streaming apps. But smartphones are not just for listening to music. Gigzee is an events app—a location-aware tool for finding shows/concerts in your area. With more people on smartphones, more people can take advantage of location-based services like this. Music creation apps like Virtuoso Piano, Drum Kit, freestyle, NLog Synth, Digidrummer, Looptastic, and Jamble Music Mashups are wildly popular. Every human is an artist in some way—as technology improves more people will find themselves creating, and collaborating remotely. Who’s at center stage now? Creative Commons-released music encourages open remixing via sites like JamGlue, ccMixter, Indaba Music, Jamendo, SoundCloud, and more. Maybe influenced by NIN, many musicians are releasing audio source files for open remixing, fan remix contests, remix apps, or fan music videos.

As a club-goer in the game’s easy mode, you would be 21+ or 18+ depending on the country or venue rules. With your politeness and your ID, you would pass through the bouncer and get inside to have more interactions inside the venue or on the dance floor. In the advanced mode, you would be underage, and you would have to try to pass a fake ID, or invent a way in without one—a lie, another entrance, etc. Once inside you would be able to see, hear, move around, and interact just as you would in a real, live venue. You would get to witness an actual, or virtualized, video stream from the venue. The setting choices for the game might be bars, clubs, concerts, festivals, or any other type of music venue. They could be real or fictitious, and who’s to say what’s real? Level 1 could start on the city street outside a dive bar, and in the subsequent levels the player would work up to larger and larger venues.

As a bouncer in the game’s easy mode, you would have to be polite as you worked the door, checked ID’s, spotted fake ones, and greeted incoming club-goers. Bouncers would lose points for being rude, or for mishandling the crowds. In more advanced bouncer modes, you would have to responsibly prevent violent behavior, by pacifying out-of-control partiers without causing them any physical harm. As for the game levels, the bouncers could start out working for a dive bar, and work up to nicer and nicer jobs at different venues. Even job interview interactions could be simulated in the game.

Maybe you could not attend a real-life Radiohead show in London, but in VirtualVenue you could. Music would be featured throughout the game, and licensing would be paid to those real-life musicians whose songs and live appearances were used in the game. The company that produced this game could generate huge revenues by selling advertising to actual venues, and having them featured as game-setting locations with live, 3D, video feeds of the actual performances. With the game connected to the internet, and the touring artists in the game being real, ticketing companies could pay to have their gig listings in the game, which would increase actual ticket sales and further promote the artists and the venues. A third revenue stream for the game company could be selling subscriptions, of the behavioral data findings, to robotics developers, or to security industry professionals who would want to know all the latest security flaws and use that knowledge to tighten real-life security.

There are myriad ways to expand on all of these ideas. The game could work best in a mashup with social networks, and enable you to play with real people from around the globe.

I think that crowdsourcing videogame technology could lead to the training of real, digital bouncers—an idea that I don’t think is too bizarre. The VirtualVenue network could aggregate data about how players reacted in different situations, and help teach computers human-like behavior. The data crowdsourcing model is already widely used. For example the familiar reCaptcha essentially uses humans to teach computers to read our handwriting for the purpose of digitizing books. Crowdsourcing leads to open innovation, and we may not be far from crowdsourced, robot-teaching technology becoming a mainstream reality. This game, and others like it, could include physical and vocal input from the player, making the game feel more realistic, and opening doors to teaching robots our body language, and our spoken languages. It will be key that we maintain ethics and use this technology in smart ways, because we’ve all seen Terminator and can imagine how this sort of technology might explode. How can we ensure that the relationship between humans and computers remains symbiotic? Computers educated by humans…where might this lead?

Upcoming: We aim to look at this issue in reverse—how videogame technology might enrich our learning through virtual education—see virtualmusic.tv/education/