The centerpiece of the Bach collection is a 2015 recording of The Well-Tempered Clavier, the so- called old testament of piano music, a series of 48 preludes and fugues in all of the piano's possible keys. A look at that monumental collection's recorded history could serve as a compendium of piano performance styles through the last 120 years. Unsurprisingly, Biret conforms to none, and perhaps the best way to describe her interpretations is orchestral. As the historically informed Baroque practitioners prescribe, each prelude and fugue certainly has a distinct character, but those long lines emerge with the definition of strings, brass or winds, lush and strident by turn. Trills are mellow and exquisitely shaped, and a wealth of detail is present but never exaggerated. Biret's Bach is a cliff wall to be scaled, a peak to be reached and an aspiration to be achieved.

During the 200th anniversary of the first performance of Beethoven's 9th Symphony, in 2024, IBA is releasing a commemorative limited edition on LP, Idil Biret's performance of the symphony as transcribed for piano by Franz Liszt, originally recorded for EMI and published in a box set of 6LPs with all nine symphonies in 1986. The Choral Fantasy for Piano, Orchestra and Chorus, considered a precursor to the 9th Symphony, is also included in the set.

With this LP, IBA is beginning to release a new series of live concert recordings from the immense sound/video archive of Idil Biret from the 1950s to 2020. On the first LP, Schumann's Fantasie Op. 17 from the New York concert at Alice Tully Hall in 1972 and Liszt's Sonata in B minor from the Paris concert at Salle Gaveau in 1978 are included. These two performances of the works were significant milestones in Biret's concert career, opening up to her the stages of the Soviet Union and East Germany.

With Pierre Boulez's 2nd Piano Sonata Idil Biret not only makes her American recording debut, but also presents the first U.S. recording of this important contemporary work. Composed in 1948, this sonata occupies a position that exerted a causative influence upon Boulez's subsequent music. It's experimental and ground-breaking nature may be better understood if one regards it as having grown out of a response to Webern's Variations (1936), the companion piece on this album. The rigid, geometric patterns of Webern's work, the classical purity of it's encompassing organization, seems to have served as a base of departure for Boulez's broadened structures that are equally rigid but incomparably more complex. It is this very complexity that conceals the strict framework of the entire composition and projects it as the product of an ardent improvisatory impetus. It demands from it's interpreter a similar approach, along with technical prowess and intellectual control of the highest order. It was only a matter of course that this work, together with influences emanating from other sources (chiefly John Cage), should lead the path not only to open-form and aleatory compositions, including Boulez's own 3rd Piano Sonata, but also, through it's new pianistic language, urge the development of a whole new generation of virtuoso pianists. (Ilhan Mimaroglu, 1973)

After listening for a while (to orchestral music on the radio) Idil would detect the main melody and then play it on the piano with one finger. Afterwards, when she reached the age of four, she would play these with two hands and with the correct harmony. Bach preludes and fugues from the Well Tempered Clavier, for example, which even the talented musicians took considerable time to study and memorise, were mastered by Idil in only a few days after listening once or twice, after which she would play these without a single wrong note. (Leman Biret, 1988)

Bach published during his lifetime four volumes of keyboard pieces under the title Clavierubung which began with a set of six Partitas, published between 1726 and 1731. The first of the set was the Partita No. 1 in B flat major. The Chromatic Fantasia and Fugue in D minor, was apparently written during Bach's time at Cothen, probably about 1720, and revised in Leipzig about 1730. The six English Suites, the 3rd being included here, have nothing particularly English about them, except their title. They were written perhaps in Weimar in about 1715 or possibly during Bach's period at Cothen. Bach brought together a set of five French Suites, of which the 5th is Biret's favourite, later augmented to six and forming part of the Clavierbuchlein for Anna Magdalena, his second wife. The Italian Concerto in F major was published in 1735 in the second volume of the Clavierubungen, with the original title Concerto nach Italienischen Gusto. It reflects the style of the Venetian solo concertos by Vivaldi.

The Schwetzingen Festival concerts were dedicated to Chopin in 1999 on the 150th anniversary of his death. Four pianists were invited to the event. Three of them, Lilya Zilberstein, Anatole Ugorski and Andrei Gavrilov were 'stars' of Deutsche Grammophon. The fourth was Idil Biret who had not attained 'star' status as it was only available to those with contracts with the so-called "major" record labels. But, she had been the first pianist ever to record the complete works of Chopin for solo piano and with piano and orchestra for Naxos, received a Grand Prix du Disque Frederic Chopin in Warsaw in 1995 for this and was to be decorated with one of the highest orders of Poland by President Kaczynsky in 2007. Idil Biret did something no other pianist could do. Dr. Peter Stieber wrote: "Your own Chopin evening was then the breath-taking testimony of a great artist. We all could experience together how in your hands the wonderful music of Chopin begun truly to blossom."

Idil Biret was introduced very early to the music of Bach. At the age of three she was trying to play from ear the preludes of Bach from the Well Tempered Clavier which her mother played on their upright piano and drawing his picture in her note book. In her memoires, Idil's mother Leman Biret writes: "After listening for a while to orchestral music on the radio Idil would detect the main melody and then play it on the piano with one finger. Afterwards, when she reached the age of four, she would play these on the piano with two hands and with the correct harmony. Bach preludes and fugues from the Well Tempered Clavier, for example, which even the talented musicians took considerable time to study and memorise, were mastered by Idil in only a few days after listening once or twice, after which she would play these without a single wrong note. "Then, at the age of four her teacher Mithat Fenmen played for Idil on an 78rpm record by Edwin Fischer the Prelude and Fugue in F minor from the Well Tempered Clavier Book II. She says that Bach's music has been a part of her life ever since that day. In 1946, at the age of five, she played the D Minor Piano Concerto of Bach with a string quartet at the Ankara Radio, a work that would be a staple of her concert programs from then on. "The remarkable evening began with D Minor Piano Concerto of J.S. Bach. The concerto required, from the very first measure, agile, precise dexterity from the pianist. Idil Biret took the challenge with a ravishing pulse which carried one away. How this artist combines the strict discipline of the score with the capacity to build sovereign forms is exemplary. Energetically, she drove the flanking Allegro movements forward and dwelled on the song like beauties of the Adagio with concentrated abandon." Dietrich Wolf DRESDNER NEUESTE NACHRICHTEN (Germany) 1996

The recordings of Prokofiev's Sonatas No. 9, 8 and 4 are derived from radio broadcasts in Germany (1964), Switzerland (1971) and Turkey (1973) and that of the Toccata from a Soviet Union radio broadcast of Biret's first Moscow recital during her sixteen concert tour of the USSR in 1960 at the age of nineteen. The recording of Piano Sonata No. 2, the second recording of Sonata No. 7, both made direct-to-disc in 1977 at the RCA Studio in New York, and the Swiss, German, Turkish and Soviet radio recordings are all unedited single takes.

Idil Biret wanted to record the many waltz transcriptions of Godowsky and others. Chief among these was the transcription of the Johann Strauss' waltz Kiinstlerleben by Godowsky which she had performed at many concerts in the l 970s and the Blue Danube Waltz. However, there was another project scheduled before that; four Haydn Sonatas, some of the most beautiful among the many he composed. When Idil suddenly fell ill in 2021 both projects were abandoned. Then, miraculously a stupendous recording of her performance of Kiinstlerleben in New York in December 1975 surfaced on the internet which led to reembarking on the project in a somewhat different way. The result is this CD, a compilation of Biret's past performances of Waltzes and Dances from many composers including Bartok, Berlioz, Chopin, Debussy, Liszt, Ravel, Stravinsky and, of course, Leopold Godowsky - his piano transcription of the Strauss waltz Kiinstlerleben "Metamorphosis on Themes from Artist's Life"

Idil Biret who arrived in Paris at the age of seven and a half, unable to read music but playing Mozart's C major concerto as she will never play better. It was played by a great artist who happened to be a little girl who could not read music. One played her a piece of music once or twice and she knew it all. (Nadia Boulanger, Paris 1973)

The Schwetzingen Festival concerts were dedicated to Chopin in 1999 on the 150th anniversary of his death. Four pianists were invited to the event. Three of them-Lilya Zilberstein, Anatole Ugorski, and Andrei Gavrilov-were 'stars' of Deutsche Grammophon. The fourth was Idil Biret, who had not attained 'star' status as it was only available to those with contracts with the so-called "major" record labels. But she had been the first pianist ever to record the complete works of Chopin for solo piano and with piano and orchestra for Naxos, received a Grand Prix du Disque Frédéric Chopin in Warsaw in 1995 for this, and was to be decorated with one of the highest orders of Poland by President Kaczynsky in 2007. Idil Biret did something no other pianist could do. Dr. Peter Stieber wrote: "Your own Chopin evening was then the breath-taking testimony of a great artist. We all could experience together how in your hands the wonderful music of Chopin begun truly to blossom."

Apart from Idil Biret's "culturally, historically or aesthetically significant" performance of Rachmaninoff's 3rd Piano Concerto with the Boston Symphony Orchestra conducted by Erich Leinsdorf on 22 November 1963, another memorable performance of the 3rd Concerto was at the Istanbul Festival in July 1983 with the Leningrad Orchestra conducted by Alexander Dimitreev. After her performance the orchestra's conductor Alexander Dimitriev visited Idil Biret at her home and said the following: "We were quite intrigued when we learnt that you wanted to perform Rachmaninoff's 3rd Piano Concerto with our orchestra as women rarely play this work. I now want to thank you for your wonderful performance yesterday. There is no woman today in the Soviet Union who can play this work the masterly way you did. The number of men who can do so are limited in number to the fingers of hand."