Pretty Maids-Future World (1987)

"Future World" was the second album by the Danish band Pretty Maids, the work that opened the American market for them and, along with their debut "Red, Hot and Heavy", is considered their two best contributions to hard rock and heavy metal, as well as their most successful albums. Released in 1987, three years after their debut, Pretty Maids steered their style towards an Americanized sound with catchy choruses, powerful and sharp guitars, which, along with the interplay of keyboards, placed them among the best heavy metal albums of the late eighties. Tracks like the superb "Needles in the Dark" and "Loud 'n' Proud" alternate with more melodic songs such as "Eye of the Storm" and "Long Way Go", clear AOR tracks like "Rodeo", and epic heavy ballads like "Yellow Rain". From here the band would release great albums such as the following "Jump The Gun" (1990), where they had the collaboration of Roger Glover in the production, which would be a massive success in Japan or the laborious "Pandemonium" (2010), with which they managed to make a truly enviable album of great heavy metal.

Duncan Mackay-Chimera (1974)

Unjustly and sadly forgotten, Duncan Mackay is a British keyboardist who recorded several high-quality symphonic progressive rock albums and also participated in significant works by Camel and Steve Harley & Cockney Rabel. His origins lie in 1967 when he finished his studies at Shrewsbury School in Shropshire, in the west of England. There he graduated in violin and was soon nominated as the most promising violinist in the UK. However, he soon switched from that instrument to keyboards, with which he also achieved great renown. In 1970, he was invited to join the band of Brazilian jazz pianist Sergio Mendes. In 1974, Mackay secured a contract with Vertigo Records for his first and best work, "Chimera", a debut album that showcased his most notable influences: the sounds of ELP and The Nice, with outstanding Hammond organ playing that permeated his music. Composed of three extensive suites, "Chimera" began with the epic "Morpheus", in which the keyboardist showcases his impressive vocal abilities in a cheerful and rhythmic piece with harsher, more visceral moments, featuring passages that lean towards jazz and even pop. The progressive "12 Tone Nostalgia" is a brilliant composition dominated by muscular Hammond organ sounds, while the mammoth "Song For Witches" is a memorable suite of progressive passages in the purest style of early ELP works, with psychedelic and enigmatic sounds. Three years later, Mackay released his next work, "Score", another formidable exercise in progressive rock, but from then on his subsequent releases were of lesser scope, dedicating his later career to collaborating with groups such as The Alan Parsons Project, Budgie, and Camel, where he contributed his extraordinary keyboard sounds to the legendary album "Nude". "Chimera" is one of the hidden gems of progressive rock that has gone completely unnoticed amidst so many masterpieces from more media-savvy and established contemporary groups and artists.

Pink Floyd-The Division Bell (1994)

Made in 1994, would be the last work of the band in studio and possibly the best album of the post-Waters, with a huge and complex guitar work and trying to emulate the style of the '70 set, but traces of psychedelia and the oppressive feeling that time and much less on experimentation. Still, this is a very atmospheric album, with more instrumentation than usual, where the name of Rick Wright becomes an integral part of the band and his figure takes center stage lost from The Wall. Recall that disappeared in The Final Cut was a musician and collaborator on A Momentary Lapse of Reason and Delicate Sound of Thunder.
How could it be otherwise, Pink Floyd created a concept album where communication is the protagonist and the importance of communicating with others, the argument, especially Roger Waters communication with current members of the band. According to David Gilmour, and put it diplomatically, the album's title refers to the bell used in the British Parliament to vote to call the two factions divided. The album puts the names of those factions Waters and current members of Pink Floyd.
The concept revolves sadly in a "Roger, You should contact us at the time and you should do it now", contradicting statements made by leaders of the group. In many ways, the album sounds like a tribute to Waters and the war he established. 
The album overall was really superb but maybe sticking out the Floydian Cluster One with the atmosphere so peculiar that so masterfully created the group, the jazz Wearing the Inside Out, half progressive blues Coming Back to Life, Keep Talking rhythm or the huge and High Hopes complex progressive