Imeem is laying off a quarter of its 80-person staff, PaidContent reports. The music-centered social network has been more adept than many of its rivals at navigating the cutthroat music business. But one of its backers is Sequoia Capital, the ruthless VC firm which has ordered its portfolio companies to slash expenses. Imeem is also seeking to sell itself, with the help of investment bank Montgomery & Co. Imeem may be better than most digital-music startups — but it is still a digital-music startup, faced with fickle consumers, thin margins, and antagonistic partners in the record labels.