Looking at the music of Dutch rock band Focus, started in the late sixties by Thijs van Leer (b /31/03/48) with Jan Akkerman (b 24/12/46). Van Leer still performs and records under the name today (official site here). Akkerman's site here.

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20230729

Track by track 172 (154) Clair-Obscur

Archive number: 172
Title: Clair-Obscur
Main Album: Focus 11
Track number: 8
Genre: Progressive Rock Instrumental
Studio: Unknown
Length: 3:14
Composer: Thijs van Leer
Musicians: Thijs van Leer – Hammond organ; Menno Gootjes – Guitars; Udo Panekeet – Bass; Pierre van der Linden – Drums
Producer: Geert Scheigrond
Engineer: Geert Scheigrond
Label: In and Out of Focus Recordings
Date of recording/release: November 2018
Alternative recording: Focus Family Album
Notes: This is the same recording as is found on The Focus Family Album

Track by track 171 Palindrome

Archive number: 171
Title: Palindrome
Main Album: Focus Family 11
Track number: 7
Genre: Progressive Rock Instrumental
Studio: WedgeView Studios, Netherlands
Length: 5:34
Composer: Thijs van Leer
Musicians: Thijs van Leer – Hammond organ; Menno Gootjes – Guitars; Udo Panekeet – Bass; Pierre van der Linden – Drums
Producer: Geert Scheigrond
Engineer: Geert Scheigrond
Label: In and Out of Focus Recordings
Date of recording/release: November 2018
Alternative recording: None
Notes: The track begins with drums then a guitar riff plus a discordant organ sound that cuts through the melody. This pattern continues for the first 49 seconds when a lighter pattern comes in for 15 seconds before reverting to the previous pattern. At 1:26 we are back to the new lighter pattern for another 15 seconds before reversion to the first pattern. At 2:02 a new stately slow march comes in. This lasts down to 2:36 when the original pattern repeats punctuated with a series of short drum breaks (at 2:58-3:05, 3:16-3:23, a longer one at 3:34-3:5, 3:56-4:03 and the longest at 4:14-4:45). The stately slow march comes in again at 4:46 to end the track.
A palindrome is a word, number, phrase or other sequence of symbols that reads the same backwards as forwards, eg madam or racecar, the date and time 12/21/33 12:21 and the sentence: "A man, a plan, a canal – Panama". The 19-letter Finnish word saippuakivikauppias (a soapstone vendor), is the longest single-word palindrome in everyday use, while the 12-letter term tattarrattat (James Joyce Ulysses) is the longest in English.
The word was introduced by English poet and writer Henry Peacham in 1638. It is derived from the Greek roots πάλιν 'again' and δρóμος 'way, direction'; a different word is used in Greek, καρκινικός 'carcinic' (lit. crab-like) to refer to letter-by-letter reversible writing. The concept of a palindrome can be dated to the 3rd-century BC, although no examples survive; the first physical examples can be dated to the 1st-century AD with the Latin acrostic word square, the Sator Square (contains both word and sentence palindromes) and the 4th-century Greek Byzantine sentence palindrome nipson anomemata me monan opsin.
Palindromes are also found in music and biological structures (most genomes include palindromic gene sequences). In music Haydn's Symphony No. 47 in G is nicknamed "the Palindrome". In the third movement, a minuet and trio, the second half of the minuet is the same as the first but backwards, the second half of the ensuing trio similarly reflects the first half, and then the minuet is repeated.
The interlude from Alban Berg's opera Lulu is a palindrome, as are sections and pieces, in arch form, by many other composers, including James Tenney, and most famously Béla Bartók. George Crumb also used musical palindrome to text paint the Federico García Lorca poem "¿Por qué nací?", the first movement of three in his fourth book of Madrigals. Stravinsky's final composition, The Owl and the Pussy Cat, is a palindrome.
The first movement from Constant Lambert's ballet Horoscope (1938) is entitled "Palindromic Prelude". Lambert claimed that the theme was dictated to him by the ghost of Bernard van Dieren, who had died in 1936. British composer Robert Simpson also composed music in the palindrome or based on palindromic themes; the slow movement of his Symphony No. 2 is a palindrome, as is the slow movement of his String Quartet No. 1. His hour-long String Quartet No. 9 consists of 32 variations and a fugue on a palindromic theme of Haydn (from the minuet of his Symphony No. 47). All of Simpson's 32 variations are themselves palindromic.
Hin und Zurück ("There and Back": 1927) is an operatic 'sketch' (Op. 45a) in one scene by Paul Hindemith, with a German libretto by Marcellus Schiffer. It is essentially a dramatic palindrome. Through the first half, a tragedy unfolds between two lovers, involving jealousy, murder and suicide. Then, in the reversing second half, this is replayed with the lines sung in reverse order to produce a happy ending.
The music of Anton Webern is often palindromic. Webern, who had studied the music of the Renaissance composer Heinrich Isaac, was extremely interested in symmetries in music, be they horizontal or vertical. 
Just as the letters of a verbal palindrome are not reversed, so are the elements of a musical palindrome usually presented in the same form in both halves. Although these elements are usually single notes, palindromes may be made using more complex elements. For example, Karlheinz Stockhausen's composition Mixtur, originally written in 1964, consists of 20 sections, called "moments", which may be permuted in several different ways, including retrograde presentation, and two versions may be made in a single program. When the composer revised the work in 2003, he prescribed such a palindromic performance, with the 20 moments first played in a "forwards" version, and then "backwards". Each moment, however, is a complex musical unit, and is played in the same direction in each half of the program. By contrast, Karel Goeyvaerts's 1953 electronic composition, Nummer 5 (met zuivere tonen) is an exact palindrome: not only does each event in the second half of the piece occur according to an axis of symmetry at the centre of the work, but each event itself is reversed, so that the note attacks in the first half become note decays in the second, and vice versa. It is a perfect example of Goeyvaerts's aesthetics, the perfect example of the imperfection of perfection.
In classical music, a crab canon is a canon in which one line of the melody is reversed in time and pitch from the other. A large-scale musical palindrome covering more than one movement is called "chiastic", referring to the cross-shaped Greek letter "χ" (pronounced /ˈkaɪ/.) This is usually a form of reference to the crucifixion; for example, the Crucifixus movement of Bach's Mass in B minor. The purpose of such palindromic balancing is to focus the listener on the central movement, much as one would focus on the centre of the cross in the crucifixion. Other examples are found in Bach's cantata BWV 4, Christ lag in Todes Banden, Handel's Messiah and Fauré's Requiem.
A table canon is a rectangular piece of sheet music intended to be played by two musicians facing each other across a table with the music between them, with one musician viewing the music upside down compared to the other. The result is somewhat like two speakers simultaneously reading the Sator Square from opposite sides, except that it is typically in two-part polyphony rather than in unison.
(See Wikipedia)

Track by track 170 (164) Winnie

Archive number: 170
Title: Winnie
Main Album: Focus 11
Track number: 6
Genre: Progressive Rock Instrumental
Studio: Mosh Studios, Sao Paulo, Brazil
Length: 5:13
Composer: Thijs van Leer
Musicians: Thijs van Leer – Hammond organ, Flute; Menno Gootjes – Guitars; Udo Panekeet – Bass; Pierre van der Linden – Drums
Producer: Geert Scheigrond
Engineer: Geert Scheigrond
Label: In and Out of Focus Recordings
Date of recording/release: November 2018
Alternative recording: Focus Family Album
Notes: This is a slightly shorter edit from the version on The Focus Family Album

20230728

Track by track 169 Mazzel

Archive number: 169
Title: Mazzel
Main Album: Focus Family 11
Track number: 5
Genre: Jazz Rock Instrumental
Studio: WedgeView Studios, Netherlands
Length: 4:23
Composer: Thijs van Leer
Musicians: Thijs van Leer – Hammond organ; Menno Gootjes – Guitars; Udo Panekeet – Bass; Pierre van der Linden – Drums
Producer: Geert Scheigrond
Engineer: Geert Scheigrond
Label: In and Out of Focus Recordings
Date of recording/release: November 2018
Alternative recording: None
Notes: Mazzel is a Dutch slang word for luck (used in phrases for good luck, also so long or bye) taken from Yiddish (as in Mazzel tov, good luck)
The track is led in by the electric guitar before the whole band joins with choppy jazz type progressions. At 01:33-01:44 (and 03:28-03:42) the guitar becomes a little more mournful and then it is back to the jazz. Plenty of variation but no prgression. From 01:44 flute or synthesiser is introduced.

Track by track 168 How many miles?

Archive number: 168
Title: How many miles?
Main Album: Focus 11
Track number: 4
Genre: Progressive Rock Pop Song
Studio: WedgeView Studios, Netherlands
Length: 4:48
Composer: Thijs van Leer
Musicians: Thijs van Leer – Hammond organ, flute, vocal; Menno Gootjes – Guitars; Udo Panekeet – Bass; Pierre van der Linden – Drums
Producer: Geert Scheigrond
Engineer: Geert Scheigrond
Label: In and Out of Focus Recordings
Date of recording/release: November 2018
Alternative recording: None
Notes: These are the lyrics to the track

How many miles between
my love and I?
My love, where have you been
all my life?

How many stars have seen
us weep and cry?
With tears of joy that mean
us man and wife?

Let me reflect your energy
that moves my soul to ecstasy.
Let me become your melody
be sung in perfect harmony.

Amazing grace, your face divine,
now let me be your Valentine.
Let me become your bird so free
on wings made for eternity.

How come you shine so bright
you lucky star?
This fragrance of your soul
smells from afar.

How is it possible
your answer's yes?
My deepest joy, my love,
forever jazz …
let me reflect your  energy ...

The track begins (00:00-00:09) with drums before breaking into a bouncing instrumental ensemble with guitar and flute. Then at around 01:09 a slightly cheesy pop song comes in and lasts until around 03:27. We then revert to the bouncing instrumental but this time with a spoken van Leer voice over reiterating the lyric until the fade.