Over a period of five years, Swiss directors Norbert Wiedmer and Peter Guyer documented the activity of legendary producer Manfred Eicher, the founder and driving force behind ECM Records, whose advocacy of progressive jazz and of classical composers like Arvo Pärt, Meredith Monk, Valentin Silvestrov, and György Kurtág changed the landscape of contemporary music in the late 20th and early 21st centuries. The film Sounds and Silence: Travels with Manfred Eicher was released in 2009 and this 2011 soundtrack album is made up largely of tracks taken from previously released ECM albums that Eicher produced, some from as early as 1980. Most of the pieces are low-key and understated and feature chamber ensembles, although there are several piano tracks and several featuring orchestra or chorus. The album has a mix of selections from ECM's classical and jazz repertoire, and from the label's specialty, the many pieces that lie somewhere in between the two.

Perry and Gerrard continued to experiment and improve with The Serpent's Egg, as much a leap forward as Spleen and Ideal was some years previously. As with that album, The Serpent's Egg was heralded by an astounding first track, "The Host of Seraphim." Its use in films some years later was no surprise in the slightest – one can imagine the potential range of epic images the song could call up – but on its own it's so jaw-droppingly good that almost the only reaction is sheer awe. Beginning with a soft organ drone and buried, echoed percussion, Gerrard then takes flight with a seemingly wordless invocation of power and worship – her vocal control and multi-octave range, especially towards the end, has to be heard to be believed. Nothing else achieves such heights, but everything gets pretty darn close, a deserved testament to the band's conceptual reach and abilities.

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.

Their reputation growing by leaps and bounds, including a huge underground following in the U.S. – they were able to tour there even without one domestic release available, while at one point Dead Can Dance was the biggest selling band in 4AD's history – Perry and Gerrard once again did the business with Aion. Its cover taken from Bosch, Aion's medievalism was worn more openly than ever before, with songs adapted from centuries-old material. The beautiful, entrancing "Saltarello," with lead performance by what sounds like an old wind instrument, comes from an Italian dance of the 14th century, while the mysterious moods of "The Song of the Sibyl" derive from 16th-century Catalonia. The group's command of not merely recording possibilities – witness the exquisite layering of vocals on the opening "The Arrival and the Reunion" – but of musical traditions, instruments, and more from around the world was arguably never stronger. Gerrard's vocals in particular have an even stronger, richer feeling than before, not merely able to command with its power but softly calm and seduce.

These are Landreth's earliest known recordings, half of them made in a single afternoon 1973 when he was just 22 years old, the other half recorded in 1977. They display Landreth in the wine of his youth, looking outward for inspiration, sounding more generally Southern than uniquely Louisianan. If you are seeking an album of Louisiana music, I suggest you look elsewhere. But if it is the long-lost first album of an acknowledged slide guitar king you seek, perhaps the finest of his generation, look no further. It is in your hands.

Without doubt the most important qawwal is Nusrat Fateh Ali Khan & Party – "Party" is a generic term for a qawwali ensemble but is also used in Sikhism and to describe some classical music ensembles, for example, shehnai maestro Bismillah Khan & Party. Dubbed Shahen-Shah-e-Qawwali (the Brightest Star in Qawwali), he was born on October 13, 1948, in Lyallpur in the Punjab Province of Pakistan. He made his first recording in 1973 in Pakistan and a number of early EMI (Pakistan) albums jointly billed him with his uncle Mubarak Ali Khan.

LSD: Love, Sensuality and Devotion gathers over a decade's worth of Enigma's definitive tracks, including the song that started it all, "Sadeness, Pt. 1." "Return to Innocence," "Beyond the Invisible," and "Cross of Changes" are all featured as well, and though the collection ranges from the rock-tinged "I'll Love You…I'll Kill You" to atmospheric, electronic fare like "Shadows in Silence," since it's all essentially Michael Crétu's vision, it flows surprisingly well. Since Enigma's sound has varied fairly drastically over the years, LSD: Love, Sensuality and Devotion is the perfect starting point for anyone curious about Crétu's music, and the only Enigma album that casual fans might need.

The mark that the recording of Caravanserai and Love Devotion Surrender had left on Carlos Santana was monumental. The issue of Welcome, the band's fifth album and its first with the new lineup, was a very ambitious affair and was regarded by traditional fans of Santana with even more strangeness than its two predecessors. However, issued as it was at the end of 1973, after Miles had won a Grammy for Bitches Brew and after Weather Report, Return to Forever, and Seventh House had begun to win audiences from the restless pool of rock fans, Santana began to attract the attention of critics as well as jazz fans seeking something outside of the soul-jazz and free jazz realms for sustenance. The vibe that carried over from the previously mentioned two albums plus the addition of vocalist Leon Thomas to the fold added a bluesy, tougher edge to the sound showcased on Caravanserai.