- Billie Jean [multitrack] - 39... — Michael Jackson

Here is an exploration of the unique elements found within these layers: The "Sonic Personality" of the Drums

The "Billie Jean" multitrack containing 39 tracks is a legendary look into the Acusonic Recording Process . Developed by engineer Bruce Swedien, this technique allowed for a nearly limitless track count by synchronizing multiple 24-track tape machines.

: Despite the complex production, Jackson reportedly nailed the lead vocal in a single take after warming up his voice every morning during the recording period. The 91-Mix Perfectionism

: They collectively agreed that the second mix captured the original magic and energy better than any subsequent attempt, making it the version released on Thriller . Key Instrumental Layers

One of the most famous stories regarding these tracks is that Swedien mixed the song 91 times .