The most reliable way to get these specific files is directly through official platforms: iTunes Store going DRM Free! - Terry White's Tech Blog 14 Jan 2009 —
Before 2009, songs sold on the iTunes Store were encoded at 128 kbps and wrapped in Digital Rights Management (DRM), meaning they could only be played on authorized Apple devices. In 2007, Apple introduced "iTunes Plus," which offered two major upgrades: higher quality (256 kbps) and the removal of DRM. Itunes Plus Aac M4a Sites
Tracks come pre-tagged with correct artist names, album titles, and years. The most reliable way to get these specific
Apple claims this quality is "virtually indistinguishable" from original studio recordings. 3. Historical Impact on the Industry Tracks come pre-tagged with correct artist names, album
Standardized at 256 kbps, which Apple claims provides sound quality indistinguishable from original CD recordings for most listeners.
Access via: Apple Music app (macOS/Windows) or iTunes (legacy)