Which UK charity is named after a New York bar? The Saturday quiz

The questions
1 Which singer songwriter is known as the “mother of the MP3”?
2 What is the largest arboreal mammal?
3 Sandra Mason is the first president of which country?
4 Which UK charity is named after a New York bar?
5 In global investment, what is a SWF?
6 Which monarch had a 325-volume stamp collection?
7 Which Lloyd Webber musical borrowed a title from Elgar?
8 The sports paper L’Auto founded which race?
What links:
9 Abertawe; Caerdydd; Casnewydd; Llanelwy; Tyddewi?
10 Hudson; Crichton; Pennyworth; Carson?
11 Betelgeuse; Peter the Great; plague rodents; music, dance etc?
12 Aspartame; isomalt; lactitol; steviol glycoside?
13 Thyssen-Bornemisza; Reina Sofia; Prado?
14 Canton; charge; field; fimbriation; fly, hoist?
15 Little Albert; Asch Conformity; Stanford Prison; Milgram?

The answers
1 Suzanne Vega (Tom’s Diner was used in testing).
2 Orangutan.
3 Barbados.
4 Stonewall.
5 Sovereign wealth fund.
6 George V.
7 Starlight Express.
8 Tour de France.
9 Welsh names for Welsh cities: Swansea; Cardiff; Newport; St Asaph; St Davids.
10 Fictional butlers: Upstairs, Downstairs; Admirable Crichton; Batman; Downton Abbey.
11 Anagrams: star; tsar; rats; arts.
12 Artificial sweeteners.
13 Galleries in Madrid’s “art triangle”.
14 Parts of a flag.
15 Famous (or infamous) psychological experiments.