Music Management Course: John Hartmann’s Insights and Guest Experts
For aspiring music managers and artists, John Hartmann’s music management course at Holodigm Academy offers a rare opportunity to learn from one of the most seasoned professionals in the industry. With over 50 years of experience managing iconic artists like Graham Nash, David Crosby, and The Eagles, Hartmann has crafted a course that delves deep into the timeless principles of artist management […]