The Edinburgh International Festival’s Queen’s Hall series ended with two very impressive debuts. Thursday morning brought the Isidore Quartet, who winningly, if slightly naively, told us that Edinburgh had a similar energy to their native New York.

This was one of the more strait-laced concert performances, with few concessions to Wagner’s underlying stage drama. The soloists were in formal concert dress, strung out in a line at the front of the stage, with interaction between them limited to looks of anguish and the sparest of gestures. The shepherd boy in Act 1 was banished to the upper reaches of the organ gallery, and there was a substantial off-stage band in Act 2, but otherwise there was nothing to distract us from the music.

Several years ago I got chatting to a young tenor who was training at the Royal Northern College of Music. He was enjoying his studies, but complained that, as a British tenor, he got offered a lot of Britten and Handel but not an awful lot else.

Every time I have heard Ravel’s Piano Concerto for the Left Hand, some wiseacre in the bar afterwards trots out the predictable joke that it’s a cheap concert as the pianist gets only half the fee. For all that this is obviously nonsense, most pianists go on to play a two-handed encore to set the record straight. Yuja Wang, in her Edinburgh Festival concert with the Oslo Philharmonic Orchestra, chose to play a whole other piano concerto, in this case the same composer's G major.

A performance of Olivier Messiaen’s kaleidoscopic Turangalîla-Symphonie is always going to be a bit of an event. The Edinburgh International Festival set this one up nicely by making it not only the impressive culmination of a four-concert residency by the London Symphony Orchestra, but also the centrepiece of a group of Messiaen-themed performances.

A toy car – in fact, a mobile home with comically enormous antenna on top – shudders over arms and shoulders as if they were mountain ranges. A colossal polar bear comforts its curious cub. A lifesize puppet grandmother is chased up and down stairs by her over-enthusiastic stairlift.

This concert, the Edinburgh International Festival debut of the Castalian Quartet, almost didn’t happen due to the illness of their second violin, Daniel Roberts. Then, a couple of days ago, in stepped Yume Fujise, leader of the Kleio Quartet, to save the day, which is no mean feat considering that this programme featured both a world premiere and the knottiest of Beethoven’s late quartets.

The Edinburgh International Festival’s focus on Korea moves to the Queen’s Hall in the festival’s middle week, with performances from two Korean soloists playing alone.

The National Youth Choir of Scotland have the most easily pronounceable acronym in Scottish music: everyone up here knows who you’re talking about when you mention NYCOS.

There’s a Korean strain to the Edinburgh International Festival’s programme this year, more in the drama programme than in the music one, but it came to the Usher Hall in Friday night’s concert from the KBS Symphony Orchestra (★★★★). They play a similar role in Korea to what the BBC Orchestras do in the UK (KBS stands for Korean Broadcasting System) and if this concert is anything to go by then they’re a jolly impressive bunch of musicians.