In 2008, changes in the tax law that allowed songwriters to pay a small capital gains tax instead of a larger income tax prompted Branca to advise some of his clients that this was the perfect time to sell their music publishing catalogs, thereby establishing new precedents in valuation. Ensuing sales included: Kurt Cobain and Nirvana copyrights; Steve Tyler's Aerosmith publishing catalog of 160 songs to "Primary Wave Music Publishing" for $50 million; Julian Lennon's share of The Beatles' royalties, and the catalog of the legendary song-writing team of Leiber & Stoller to Sony/ATV, which created a new yardstick by which the worth of catalogs was measured. He also sold Berry Gordy's "Jobete Music" to EMI, which changed the method and standard by which catalogs were valued.