SAN JOSE, Calif. — Whether it’s the albums you buy, the radio stations you choose or the songs you put in your portable player, music has always been a matter of personal taste. Now, a startup led by a team of veterans in the digital music arena seeks to offer what it considers a new level of ‘personal radio’ by combining elements of Internet radio, portable music and satellite distribution, while letting users choose the tunes, genres or artists they want. Slacker Inc., based in San Diego, plans to launch its radio service Wednesday, when its Web site, http://www.slacker.com, goes live initially in a beta, or testing, stage. A separate Wi-Fi-enabled pocketable gadget that will be able to play the personalized selections will be available in the early summer, with models ranging roughly from $150 to $299, the company said. A car kit that will deliver the music via satellite signals will be available later in the year at a price yet to be disclosed. Here’s how it works: Users must first log on to Slacker online before they can begin listening to music from more than 10,000 stations that are built around specific artists […]