Younger Than Yesterday is the fourth studio album by the American rock band the Byrds, released on February 6, 1967, by Columbia Records. It saw the band continuing to integrate elements of psychedelia and jazz into their music, a process they had begun on their previous album, Fifth Dimension. In addition, the album captured the band and record producer Gary Usher experimenting with new musical textures, including brass instruments, reverse tape effects and an electronic oscillator.

Live at the Fillmore - February 1969 is a live album released by the American rock band the Byrds in 2000 on Columbia/Legacy. Compiled from two performances at the Fillmore West on February 7 and 8, 1969, the album includes several songs that are not found on any of the group's studio albums.
Recorded less than a week after the release of the Byrds' album, Dr. Byrds & Mr. Hyde, the band line-up on these recordings includes lead singer and guitarist Roger McGuinn, lead guitarist Clarence White, bassist John York, and drummer Gene Parsons.

The Notorious Byrd Brothers is the fifth studio album by the American rock band the Byrds, released on January 15, 1968, by Columbia Records. The album represents the pinnacle of the Byrds' late-'60s musical experimentation, with the band blending together elements of psychedelia, folk rock, country, electronic music, baroque pop, and jazz. With producer Gary Usher, they made extensive use of a number of studio effects and production techniques, including phasing, flanging, and spatial panning.