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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20201113

Track by track 140

Archive number: 140
Title: Two-part Intervention
Main Album: The Focus Family Album
Track number: 5
Genre: Acoustic guitar
Studio: Unknown
Length: 1:21
Composer: Menno Gootjes
Musicians: Menno Gootjes – Guitar
Producer: Geert Scheijgrond
Engineer: Geert Scheigrond
Label: In and Out of Focus Recordings
Date of recording/release: 2017
Notes: Menno plays his guitar

Track by track 139

Archive number: 139
Title: Victoria
Main Album: The Focus Family Album
Track number: 4
Genre: Prog Rock Instrumental
Studio: Fieldwork Studios, Schoten, Belgium (Mixed at B-Spot Studio; mastered at Tube Mastering)
Length: 5:28
Composer: Thijs van Leer
Musicians: Thijs van Leer – Hammond organ, piano, flute; Menno Gootjes – Guitars, Vocals; Bobby Jacobs – Bass; Pierre van der Linden – Drums
Producer: Bobby Jacobs, Geert Scheijgrond
Engineer: Bram Bol/Geert Scheigrond
Label: In and Out of Focus Recordings
Date of recording/release: 2012/2017
Alternative recording: This is an edit from the version on Focus X
Notes: See Track by track 128

Track by track 138

Archive number: 138
Title: Riverdance
Main Album: The Focus Family Album
Track number: 3
Genre: Drums
Studio: Unknown
Length: 4:45
Composer: Pierre van der Linden
Musicians: Pierre van der Linden - Drums
Producer: Geert Scheigrond
Engineer: Marlies Helder
Label: In and Out of Focus Recordings
Date of recording/release: 2017
Alternative version: The same track is on Drum Poetry
Notes: This is a drum piece from Pierre van der Linden

Track by track 137

Archive number: 137
Title: Song for Eva
Main Album: The Focus Family Album
Track number: 2
Genre: Jazz Rock
Studio: Unknown
Length: 9:31
Composer: Thijs van Leer/Lord Byron 
Musicians: Thijs van Leer - Piano, Organ , Voice, Menno Gootjes - Guitars, Udo Pannekeet - Bass, Pierre van der Linden - Drums
Producer: Geert Scheigrond
Engineer: Geert Scheigrond
Label: In and Out of Focus Recordings
Date of recording/release: 2017
Alternative version: Introspection 4
Notes:
Eva is Thijs's oldest daughter and he wrote this song for her. It was used as the theme (using the original version) to a 1978 Dutch TV drama called Exit 7.
We begin with piano and Thijs speaks the Byron poem below supported by the band. After about a minute the guitar leads with a repeated slow yearning strain that carries the main theme. This continues until 4:05 when a more jazzy guitar leads another passage, increasingly complex. This eventually blends back into something like the previous theme, which is repeated from 7:17. In the last 50 seconds the whole thing winds down in the manner that the section began at 4:05 but coming to a close this time.
Words (Lord Byron)

They say that Hope is happiness;
But genuine Love must prize the past,
And Memory wakes the thoughts that bless:
They rose the first - they set the last;

And all that Memory loves the most 
Was once our only Hope to be,
And all that Hope adored and lost
Hath melted into Memory.

Alas! it is delusion all:
The future cheats us from afar,
Nor can we be what we recall,
Nor dare we think on what we are.

Lord Byron (from Wikipedia) - George Gordon Byron, 6th Baron Byron, FRS (1788–1824), known simply as Lord Byron, was a British peer, who was a poet and politician. He was one of the leading figures of the  Romantic Movement and is regarded as one of the greatest British poets. He remains widely read and influential. Among his best-known works are the lengthy narrative poems Don Juan and Childe Harold's Pilgrimage; many of his shorter lyrics in Hebrew Melodies also became popular. This poem is from the latter source.
He travelled extensively across Europe, especially in Italy, where he lived for seven years in Venice, Ravenna and Pisa. During his stay in Italy he frequently visited his friend and fellow poet Percy Bysshe Shelley. Later in life Byron joined the Greek War of Independence fighting the Ottoman Empire and died of disease leading a campaign during that war, for which the Greeks revere him as a national hero. He died at the age of 36 from a fever contracted after the First and Second Siege of Missolonghi.
His only legitimate child, Ada Lovelace, is regarded as a foundational figure in the field of computer programming, based on her notes for Charles Babbage's Analytical Engine. Byron's illegitimate children include Allegra Byron, who died in childhood, and possibly Elizabeth Medora Leigh.