David Bowie’s “The Next Day,” his first album in 10 years, is still a week and a half away from its fully physical/downloadable release, but you can hear the album in its entirety at iTunes. So far, I’m pretty knocked out by what I’m hearing — it’s been a tough wait for new material, but “The Next Day” is a worthy new addition to Bowie’s discography. I think the lengthy period of Bowielessness has forced a reassessment. We always knew he was great, but then we had to contend with a lack of new material and the musical landscape was less rich for it. Welcome back — we need you back.