The Moody Blues - Days Of Future Passed

The English rock band [a266422] was active in the years 1964–1974 and 1977–2018.
During this time they released 16 studio albums.

From Wikipedia: ( https://en.wikipedia.org/wiki/Days_of_Future_Passed )
Days of Future Passed is the second album and first concept album by English prog rock band the Moody Blues, released in November 1967 by Deram Records. With its fusion of orchestral and rock elements, it has been cited as one of the first examples of progressive rock.

The album was recorded at a time when the Moody Blues were suffering financial difficulties and lack of critical and commercial success. Their parent label, Decca Records offered them a chance to record a stereo LP that combined their music with orchestral interludes. They decided to compose a suite of songs about the life of everyday man, with the group and orchestra mostly playing separately and mixed together. It was a moderate success upon release, but following steady radio airplay, particularly of the hit single "Nights in White Satin", it became a top ten US hit in 1972. It has since been listed among the most important albums of 1967 by Rolling Stone.

Original and later mixes
In July 1978, it was discovered that the UK master tapes for Days of Future Passed had deteriorated. As a result of this, the album was remixed in its entirety in August 1978, which was used for reissues between 1978 and 2017. Some compilations, however, continued to use the original 1967 stereo mix for certain songs. The album's original mix was eventually released in its entirety on Compact Disc in November 2017.

The ways in which the later mix departs most noticeably from the original are:

==> After the orchestral intro, "Dawn Is a Feeling" begins more abruptly, and there is less echo on Mike Pinder's vocal on the bridge, making it more prominent.
==> On "Another Morning" Ray Thomas's double vocals are spread left and right in the stereo channel. The flute interlude is also played twice towards the end of the song before the orchestral segue.
==> The orchestral intro "Lunch Break" goes on about 20 seconds longer before fading out.
==> The bridges to "(Evening) Time to Get Away" have John Lodge singing alone; all the backing vocals on that part have been lost.
==> The end of "(Evening) Time to Get Away" is missing a Mellotron part and only repeats twice, instead of three times.
==> "The Sun Set" is missing some piano parts, percussion parts, and the reverb on "through the night" is different.
==> "Twilight Time" begins more abruptly after the orchestral interlude.
==> The backing vocals on "Twilight Time" are heard through the entire song instead of only coming in at certain points.
==> At the beginning of "Nights in White Satin", as the orchestral prelude ends, there is one less beat of time before the rhythm section starts in.
==> Some of the strings near the end of "Nights in White Satin" (before "Late Lament") are out of sync with the main body of the song.