Looking to Windward with Iain Banks Quiz

Answer: Chelgarian Mosaikey

The relevant musical instrument in this case is the Chelgarian Mosaikey, an antique one. No description of this instrument appears in the text.
The Antagonistic Undecagonstring is a mainstay of the Ian M Banks novel "The Hydrogen Sonata".
Of the others the Baliset is a stringed instrument in the Dune universe and a Ressokan Flute comes from Star Trek.

Answer: Piety

The concept of storing one's mind state appears frequently in the Culture novels of Iain M Banks. In brief it means that death is not necessarily permanent since the mind can be saved and then loaded into a different body or at least into something. A bit like software. This is ok until the storage becomes lost or destroyed or corrupted.
In this case the original storage was at a Chelgarian Military Technology Institute then transferred to the temple ship Piety. This ship is described as being in orbit around a moon along with the wreck of a ship called Winter Storm.

Major Quilan, or to give him his full name, "Called-to-Arms-from-Given Major Tiblio Quilan IV Autumn 47th of Itirewein, griefling, Scheracht Order" is searching not only for Huyler, but forlornly for a stored version of his wife Worosei on the ship Winter Storm. Worosei and Quilan joined the Chelgarian army at the same time and served together. Her death and his survival in combat is presumably how Quilan became a griefling. This grief provides Quilan's motivation throughout the plot.

Answer: Dirigible behemothaur

Dirigible behemothaurs are massive creatures, described as the size of mountains. They contain complete ecosystems of other creatures. Some of them are visiting guests, others are described as "slaved organisms, symbiotes and parasites".

This behemothaur appears as host of a visiting scholar from the Culture by the name of Uagen Zlepe. Somewhere within his travel aboard Yoleus he comes to hear of a plot to attack the Culture and tries to send warning.
The other options are all species mentioned in one or other of the Culture novels of Ian M Banks.

Answer: Twin Novea Battle

In the Culture-Iridian war, several centuries previously, two stars were destroyed in the Twin Novea Battle. The light of this explosion, some 800 light years away, is due to reach from the Masaq' orbital very soon. Ziller's symphony is to be played so as to reach its climax at the moment this happens.

The timeline of the symphony being composed and its premiere also form the timeline of the plot, the climax of the story coinciding with the climax of the concert.

Answer: Homodian

Homodans are pyramidal tripeds with three legs, three arms and three ears, about half as tall again as humans.

The Culture refers to guests of other civilisations as ambassadors. Not in the sense of representing the ambassador's original civilisation to the Culture, but as representing the Culture back to their original civilisation.

Answer: Cadracet Monastery

During the Caste Wars in which Quilan and his wife Worosei fought, Quilan was left for dead. He insisted on Worosei leaving to save herself. Sadly, the spaceship which evacuated Worosei was destroyed.

But surprisingly Quilan survived the war, firstly as a prisoner of war, before he was ransomed back to his own side. The Caste Wars were a civil war within the Chelgarian civilisation, but this war was instigated by the Culture who hoped to overthrow the rigid caste system for a more egalitarian form of government.

The only one of the options listed that appears in this novel is the Cadracet Monastery. This is described as sitting in the Grey Mountains (on an unspecified planet under Chelgarian control), and as belonging to the Sheracht Order. This is the origin of the final part of Quilan's formal name, "Scheracht Order".

As for the others, the "Monastery of Oi-Dong" is a feature of Terry Pratchett's Discworld. The "Abbey of Theleme" is a creation of Francois Rabelais. The "Mountains of Sound" are a feature of this universe but they appear in the book "The Hydrogen Sonata" not in this book.

Answer: Reporter

The discussion between Quilan and Huyler goes, "What the hell is that?" "No idea. Assume the worst. File under reporter". Thus, it shows that the two representatives of the Chelgarian's military don't have a high regard for journalists.

Answer: Lasting Damage

In the Cultural - Idiran war, the GSV (General Service Vehicle) Lasting Damage served and was believed destroyed. As such the backup of its mind state was activated, however the Mind had survived so at this point both versions of the Mind existed. In later combat one of these was destroyed but which one was not revealed at the time.

The surviving twin ended up as the hub mind of the Masaq' orbital. During the course of this novel the hub does reveal the details of which of them survived.

Answer: Wormhole

The plot to destroy the Orbital Hub is using Major Quilan to displace the end of a wormhole into the hub. The plan is that certain unidentified but "Involved" parties will then transmit something unspecified through the wormholes.

The Culture ad hoc security organisation Special Circumstances know about this plot, although this is not revealed until the end. The plot is permitted to proceed in the hope of identifying those at the other end of the wormholes.

Answer: The Wasteland

This comes from the short section four of the poem by T S Eliot. It also contains the title of the first novel released featuring "The Culture", "Consider Phlebas". This is apt and probably not a coincidence as that novel covers the back story of the hub mind from this novel during the Culture - Idiran war.

The other poems referred to are by Percy Byshe Shelley ("Ozymandias"), Samuel Taylor Coleridge ("Kubla Khan") and Edmund Spencer ("The Faerie Queene").