Haydn, Mozart and Beethoven: it’s a while since I have heard the Scottish Chamber Orchestra play such an essentially classical programme on its home turf, the Queen’s Hall in Edinburgh. Recent reviews have focused on concerts in the much more capacious Usher Hall, where this intrepid orchestra has pushed at the boundaries of its natural repertoire with an ongoing Brahms cycle and even a Mahler symphony.

Unlike Schubert, Mendelssohn and Shostakovich, Mozart composed nothing astoundingly individual before the age of 20. That leaves any odyssey through his oeuvre, year by year – this one will finish in 2041, by which time I’ll be nearly 80 if I live that long – with a problem effectively solved by Ian Page and his Classical Opera in placing works by contemporaries of various ages alongside young Amadeus’s efforts.

One down, 26 to go. “Mozart's Piano” is a series of concerts by the Aurora Orchestra at Kings Place, based around a complete cycle of Mozart's piano concertos. It started last night, and will reach its conclusion in 2020.

It was a massive but never overbearing three-parter, a three-and-a-half hour celebration, a mini-festival of youth and experience. Wouldn’t we all want to mark a major birthday in the company of friends of all ages?

Christian Gerhaher is a classy recitalist. His stage manner is debonair, his tailoring immaculate (although his hair can be unruly). His artistry focuses on key vocal virtues: directness of expression and beauty of tone. In this evening’s recital, an adventurous programme that switched between the Classical era and the Modern, that proved as valuable a combination in Schoenberg as it did in Beethoven.

Not many people write conspicuously brilliant tweets, but Elizabeth Watts is someone who does. Working on the most demanding aria on her stunning new CD of operatic numbers and cantatas by the lesser-known of the two Scarlattis, father Alessandro rather than son Domenico, she tweeted: “Good news – I can sing 88 notes without a breath. Bad news – Scarlatti wrote 89.”

Final thoughts: a fitting theme for the farewell concert of this year’s Gewandhaus Barbican residency. But the connections proved tenuous: Death and Transfiguration, the gloomy opener, was written when Strauss was only 25, and the Mozart Clarinet Concerto which followed, while it was one of his last works, shows little concern for mortality or summation. But the motivation was honourable – to find homes for Strauss’ tone poems, which rarely fit comfortably in any concert programme.

In practice as well as in prospect, the second in Riccardo Chailly’s Strauss/Mozart trilogy was a concert of two very different halves. The first offered small Bavarian and Austrian beer in the shape of Strauss’s fustian Macbeth, unbelievably close in time to the masterly Don Juan which blazed on Tuesday, and a pretty but just a little too anodyne Mozart violin concerto at the other end of Mozart’s prodigious composing life to the last work for piano and orchestra, which had amazed us in the first concert.

Riccardo Chailly’s Strauss odyssey with his Leipzig orchestra peaked in Saxony last year, the 150^th anniversary of the composer’s birth. I was lucky to catch a razor-sharp Till Eulenspiegel and a saturated Death and Transfiguration in Dresden’s Semperoper close to the birthday. 14 months on, and the Barbican has nothing like the same necessary air to offer around a mini-residency of richly-scored symphonic poems.

The frail bridge between Baroque and Classical aesthetics was the theme for this debut UK appearance by Insula, the period-orchestra extension to Laurence Equilbey’s superb vocal ensemble accentus.