Copyright law is so often a matter of guesswork and loopholes, small print and obscure provisions. One such provision, dating from the ’70s, has recently come to the music industry’s attention. “Termination rights” allow musicians to reclaim the copyrights on their songs after 35 years — meaning songs from albums like Funkadelic’s “One Nation Under a Groove” may soon be back in the hands of George Clinton and his funkified compatriots. Late last month, Representative John Conyers Jr. of Michigan, the senior Democrat on the House Judiciary Committee, called on Congress to clarify the statute in question in order to protect artists’ rights. Would that the uncertainties of copyright law in my industry garnered so much attention.