Liz and Aidan travelled with Explore (0844 499 0901; explore.co.uk).co.uk
"Sehnsucht" (2009) and "Schmetterling" (2010) explore parental loss.
Many composers today explore the border between music and sound.
Turtle-focused adventure packages are also offered by operators such as Explore (0845 013 1537; explore.co.uk).co.uk
Eleven-night escorted group tour with Explore (0844 499 0901, explore.co.uk) departs Dec 16 ,£1,615pp inc flights, transport, board and some meals.
Holy the Firm (1977) and Teaching a Stone to Talk (1982) explore similar themes.
Departs June-September, from £825pp with Explore (0844 499 0901, explore.co.uk), inc flights, transport, seven nights' B&B and guiding.
A Sleep of Prisoners (1951) and The Dark Is Light Enough (1954) explore religious themes.
Explore (0845 013 1537, explore.co.uk) has discounted all its Egypt trips by £100, if booked by 10 March.
(2012) explore some of the above issues.
Bratton and Malinowski (2008) explore the impact on crime reduction.
