Conductus, organum, and discantus may not be words in your everyday vocabulary, but these terms identify musical forms that defined everyday musical activity during one of music history's most fruitful periods. The 12th century in France, especially in Paris–the artistic, educational, and religious center of Western Europe–saw enormous progress in the arts, architecture, and education. Not surprisingly, technical and theoretical aspects of music advanced as well. On this disc, the six-voice men's ensemble Lionheart demonstrates in vivid, rich vocal tones the sometimes stark but always powerful sound of Medieval chant and its expanded two- and three-part forms. The liner notes give clear explanations of the compositions and provide the listener with meaningful historical context. But listening to these excellent voices is not just an educational experience. The music has an inherent purity, sensuality, and honesty that's refreshing and reassuring.

In 17th and 18th century New England, transplanted Englishmen like Daniel Read, Abraham Wood, and especially William Billings were composing beautiful but rough-hewn and distinctly American vocal music for use in what were called "singing schools." Far to the west and south, in what was then called New Spain and would later be called Mexico, natives and transplanted Spaniards were composing liturgical music of a richness and complexity that was worthy of the greatest cathedrals of Europe – and teaching their native converts to do the same. This disc showcases the works of two of 18th century Mexico's finest composers: the Mexican-born Manuel de Zumaya and the transplanted European Ignacio de Jerusalem. The latter is represented by a polychoral Mass in D Minor, a responsory, and a gorgeous Dixit Dominus setting written in six sections; from the former listeners have a setting of Jeremiah's lamentations, a breathtakingly complex solfeggio composition titled Sol-fa de Pedro, and the polychoral Celebren, Publiquen.

Flemish composer Adrian Willaert – who served as maestro di capella at the Cathedral of San Marco in Venice from 1527 until his death in 1562 – contributed so much to the Italian renaissance; while he wasn't the first to develop the Venetian polychoral style, its propagation in the mid-sixteenth century may well be laid at his feet. Willaert helped introduce the forms of canzona and ricercare, which greatly aided the growth of instrumental music in the years to come. The nearly overarching interest in chromaticism among Italian composers in the late renaissance can be traced to Willaert's door. Nevertheless, toss a dart into a crowd of music scholars and chances are you won't manage to hit one that has much of an opinion about Willaert's work or his music – it is seldom recorded and CDs devoted to Willaert alone are rare. On their own, these aspects make Oehms Classics' Adrian Willaert: Musica Nova – featuring the talents of expert vocal ensemble Singer Pur – special, valuable, and significant for purposes of study and filling a major hole in the renaissance repertoire. But beyond that, it is a fine listening experience as well.

An enjoyable collection for White fans, although one might prefer one's spirituals on a bigger scale. That said, Willard White makes these well-known songs seem much more intimate and reflective, private rather than public. Swing low, pressed into service at last year's rugby world cup, is sung rather faster than usual. That's no bad thing, as the song can be made to sound rather lachrymose. For White there is a sense of eager anticipation, that heaven really is at hand. The Copland songs are enjoyable too and are sung with apparent enjoyment. They were all new to me and I can see myself returning to them for their witty lyrics and sense of fun. The Chandos recording is good and the voice is well caught. The accompaniment is discreet and intelligent, making this a delightful disc all round.

To mark the 500th anniversary of the birth of Tallis, here are his biggest and best church compositions, performed in its customary high style by the Oxford Camerata under Jeremy Summerly (whose Fauré Requiem remains one of Naxos's all-time bestsellers). Tallis's youthful motet Salve intemerata is among the longest single-movement works of the 16th century, but it is Spem in alium, a work of Tallis's maturity, that overshadows any other English piece of the period, including those of his great contemporary, William Byrd. Scored for 40 independent voices, it is symphonic in proportion and resplendent in this surround-sound version.

Soundtrack to the film 'Farinelli', the 1994 biopic film about the life and career of Italian opera singer Farinelli, considered one of the greatest castrato singers of all time. It stars Stefano Dionisi as Farinelli and was directed by Belgian director Gérard Corbiau. Although Dionisi provided the speaking voice, Farinelli's singing voice was provided by a soprano, Ewa Malas-Godlewska and a countertenor, Derek Lee Ragin, who were recorded separately then digitally merged to recreate the sound of a castrato. Through the film the general public discovered a whole repertoire of works for a voice that can no longer be heard today. The soundtrack from the film became a bestseller, as we discovered with delight some beautiful pieces by Handel, Pergolesi, Hasse, Porpora and others, in a unique interpretation.

Mezzo-soprano Magdalena Kozená's collection of vocal solos (plus a few instrumental tracks) from the early Baroque, Lettere Amorose, "Love Letters," is a delight. The recital includes some familiar pieces like d'India's Cruda Amarilli, Monteverdi's Sì dolce è il tormento, and Sanz's giddy dance, Canarios, but consists largely of repertoire that's more obscure but no less engaging. Merula's lullaby chaconne Hor ch'è tempo di dormire is a jewel, gorgeously idiosyncratic and deeply emotional. Caccini's erotic Odi, Euterpe, 'I dolce canto could be mistaken for mature Monteverdi at his most mischievous, but it dates from 1601 or 1602, when Monteverdi was at an early stage in his career. A real standout of the album is Strozzi's L'Eraclito amoroso: Udite amanti, which alternates sections of extravagantly expressive recitative with a ravishingly lyrical chaconne. Kozená easily has the technique to make the music glow and the dramatic gifts to bring it movingly to life. Her sharply characterized interpretations of the songs make each of them seem as fully realized and potent as a short operatic scene. Her voice has the burnished warmth of a mezzo, but can gleam when she soars into her upper register, and throughout she maintains an exquisite purity.

Issued in 2007 on the 4AD label, THE BEST OF LISA GERRARD collects many of the finest tracks by the former Dead Can Dance vocalist/multi-instrumentalist. While the compilation includes a few tracks by that revered act, most notably the mystical "Yulunga (Spirit Dance)," a song that showcases Gerrard's striking voice, it primarily focuses on her solo work and film compositions, which both draw from music across the globe. On these pieces, Gerrard often collaborates with fellow Australian native Pieter Bourke, as on the passionate "Swans" and the expansive "Sacrifice," the latter from the INSIDER score. Although this anthology is a mere fraction of Gerrard's recorded output, it does serve as an excellent introduction to her impressive catalogue.

Cinque Profeti is a little known Christmas cantata by Alessandro Scarlatti. It has a power and subtlety redolent of Handel coupled with touches of early Monteverdi. Sung here to great effect by the five soloists with sensitive instrumentalists, they play together to bring the gentle and subtle melodies - surely written to confer a sense of the special nature of the Christmas season - to life. It’s a recording which is sure to please. Opera was not performed in Rome for much of Alessandro Scarlatti's lifetime; that's why his vocal church music mostly comprised oratorios and cantatas, of which he wrote three for the Palazzo Apostolico. Only one survives: to a libretto by Silvio Stampiglia. Cinque Profeti takes the inventive form of a conversation between the five old testament prophets, Daniel, Ezekiel, Isaiah, Jeremiah and Abraham (the cinque profeti) about the birth of Christ – which was about to be celebrated on the occasion of the cantata’s first performance, in 1705 at the Papal Palace in Rome.