The Australian pianist’s 99-CD traversal of the complete Liszt piano music is a staggering achievement. Now it’s available as a download.

Leslie Howard must be one of the most hardworking, indefatigable musicians around, and he holds the Guinness Book of World Records title to prove it. For the past twenty-five years he has dedicated himself to the mammoth task of recording every known note of Liszt’s piano music, including all the transcriptions of other composers’ works, multiple versions of the same pieces and discoveries Howard himself brought to light through tireless musicological research.

His efforts have earned him the Guinness World Record for the largest recording project ever undertaken by any solo artist, as well as recognition as the undisputed world authority on Liszt.

To celebrate the bicentenary of the composer’s birth, Hyperion Records has released Howard’s Liszt odyssey in a sprawling 99-CD boxed set. It is a surprisingly compact package, but completists who really can’t spare the shelf space need not despair: this inexhaustible trove of Romantic piano music is now also available as a high-quality download.

Hyperion is offering all 7,255 minutes of the Liszt series in MP3 or FLAC formats. But digital collectors take...