HK Gruber (b.1943) is one of the more refreshing of contemporary composers. His music is widely performed today, but since it takes time to become a household name many people have yet to make his acquaintance. Some background material is thus in order. This is how he presents himself on the Internet: 'Composer, conductor, chansionnier and double bass player HK Gruber (Vienna, 1943), is one of the most well-known and well-loved figures on the contemporary music scene, and yet he remains something of an enigma.

Telemann is said to have transformed traditional trio sonatas as composed and performed in Germany from esoteric music for virtuoso players into a considerably more popular form. I am not sure what "popular" means, but what we have here is music of the highest order, performed by a group of accomplished musicians. Admittedly, the sound of period instruments is not always to everyone's taste (including, at times, mine), but here they work well with the material and the result is on the musical mark.

Swedish clarinetist Martin Fröst is one of the world's top players, with a creamy, utterly consistent tone that is the envy of many a young player. It may be a surprise to see him take up Mozart's Clarinet Concerto in A major, K. 622, once again; he recorded it in the early 2000s with the Amsterdam Sinfonietta, along with its usual partner on disc, the Clarinet Quintet in A major, K. 581. But there are several new things this time around.

With a celebrated career encompassing five decades, Pinchas Zukerman reigns as one of today's most sought after and versatile musicians - violin and viola soloist, conductor, and chamber musician. He is renowned as a virtuoso, admired for the expressive lyricism of his playing, singular beauty of tone, and impeccable musicianship, which can be heard throughout his discography of over 100 albums.

Barbirolli made later recordings of all the works on this CD and these have become cornerstones of the catalogue. These are earlier recordings that he did with his own orchestra, the Halle, in the 1950s. To start with, the recording quality is pretty amazing. They were recorded on 35mm film tape rather than half inch recording tape by the Mercury team and have astonishing immediacy and amazingly lifelike. Barbirolli uses an organ in the finale of the Enigma Variations. The recording is a little bass heavy but this is a small caveat. For people who consider Barbirolli to be a bit indulgent as a conductor, these recordings may come as a surprise. The performances are very direct and nicely flowing. They therefore complement rather than compete with the later recordings. Of course, Barbirolli's later recording of the Cello Concerto with Jacqueline du Pre is a very famous and special rendition of the work. However, it is not without its detractors. Andre Navarra, by contrast, plays with golden tone. He plays gorgeously. Highly recommended.

One of the tastiest concoctions of the mid-'70s jazz-fusion era, Chain Reaction finds the Crusaders at the top of their form. The compositions are both accessible and memorable, and the playing is uniformly excellent. Guitarist Larry Carlton delivers some of his finest licks and funkified rhythm work. Wayne Henderson shows there is a place in fusion for the trombone. Wilton Felder does double duty, delivering smoking saxophone lines and funky bass riffs. Joe Sample's Fender Rhodes piano provides a solid chordal foundation and great solos. And the stickman, Stix Hooper, keeps the groove solid. The band employs a variety of rhythms and tempos, and gives the members plenty of room to strut their individual and collective stuff. In fact, "collective" may be the key word here, for this is the sound of a band, not just a group of guys thrown together for a recording session. Chain Reaction was one of the albums that helped lure young, rock and soul-oriented listeners over to check out the jazz side, and should not be missed by those interested in the more accessible, funky side of fusion.

With this amazing album, Dead Can Dance fully took the plunge into the heady mix of musical traditions that would come to define its sound and style for the remainder of its career. The straightforward goth affectations are exchanged for a sonic palette and range of imagination. Calling it "haunting" and "atmospheric" barely scratches even the initial surface of the album's power. The common identification of the duo with a consciously medieval European sound starts here – quite understandable, when one considers the mystic titles of songs, references to Latin, choirs, and other touches that make the album sound like it was recorded in an immense cathedral.

Demofoonte dates from the early Milan years of Christoph Willibald Gluck (1714-1787), long before the radical reform operas for which he is most famous and his break with opera seria and the librettos of Pietro Metastasio. Gluck arrived in the northern Italian city in 1737 and was mentored there by composer Giovanni Battista Sammartini. Though Sammartini primarily composed symphonies and music for the church, Milan boasted a vibrant opera scene, and Gluck soon formed an association with one of the city's up-and-coming opera houses, the Teatro Regio Ducal.