Antonin Dvořák | Humoresque No. 7 (Op. 101)

The “Humoresque No. 7” (Op. 101, 1894) by Antonín Dvořák was originally written as part of a cycle for solo piano. It was composed during a multi-year US visit by Dvorak during which the Czech composer also wrote his iconic “New World” Symphony.

Performed here by the legendary duo of violinist Itzhak Perlman and cellist Yo-Yo Ma, accompanied by the Boston Symphony Orchestra under the baton of Seiji Ozawa, the piece begins in Gb major, transitions to Gb minor at 1:35, and back to major again at 2:27.

McCoy Tyner | When Sunny Gets Blue

First recorded in 1956 by vocalist Johnny Mathis and bandleader Roy Conniff, “When Sunny Gets Blue” quickly became a jazz standard. This version was performed by piano legend McCoy Tyner and his trio in 1962, after his stint as sideman for John Coltrane. Tyner, a 4-time Grammy winner, was named a National Endowment for the Arts Jazz Master in 2002; after 80 albums, he still continues to record.

The 32-bar form modulates at the start of the middle 8 (heard for the first time at 1:04), modulates halfway through the middle 8 at 1:20, then back to the original key at 1:36. The form starts again at 2:07, as we hear a solo from Tyner.

Franz Schubert | Moment Musical #3 in F Minor (Vladimir Horowitz, piano)

Here’s a later performance by of Franz Peter Schubert‘s “Moment Musical #3 in F Minor” by legendary pianist Vladimir Horowitz. Limelight Magazine called Horowitz “a Russian-born pianist who left for the West at age 21, where he was described as a ‘tornado unleashed from the steppes’…Most famous for his performances of Romantic piano repertoire…”

There are several passing keys of the moment in the piece, but the main transition into F major is at 1:50.

Pat Metheny | Are You Going With Me?

It’s difficult to categorize contemporary guitar/guitar synth pioneer Pat Metheny‘s “Are You Going With Me?” (1989). But the key changes are far less ambiguous.

The tune’s intensity grows little by little, driven by the Metheny Group’s trademark wordless vocals and Lyle Mays‘ fluid keyboard lines. The performance was likely heightened by the huge scale of the live setting, Festival International de Jazz de Montréal. The first modulation hits at 3:44; the second key change “telegraphs” melodically by hinting at the shift slightly before its arrival at 5:20.

Wolfgang Amadeus Mozart | Piano Sonata #16 (K. 545)

The Piano Sonata #16 (1788) is among the most familiar pieces from Wolfgang Amadeus Mozart‘s works. The piece was described by Mozart himself as having been written “for beginners” and it is sometimes known by the nickname “sonata facile.” The piece is well-known today but was not published during the composer’s lifetime, first appearing in print in 1805.

Starting in C major, the first movement (Allegro) transitions to G major by 0:22 and back to C at 0:47. At 1:32, the movement cycles through a few minor keys as well.

Billy Childs | Twilight Is Upon Us

AllMusic‘s review of Billy Childs‘s album, Twilight Is Upon Us (1989), asserts that the pianist/composer’s “second CD as a leader puts as much emphasis on his composing and arranging talents as his skills as a pianist…It was clear even at this fairly early stage that Billy Childs was on his way to developing an original voice.” Having cut his teeth playing with trumpeter Freddie Hubbard‘s band for half a decade and keeping his varied list of role models in mind, from Herbie Hancock to Maurice Ravel to Keith Emerson, it seems that Childs was on the road to that original voice very early on.

The title track is nothing short of a sonic journey — it clocks in at 8.5 minutes, but is definitely worth the time.

The gentle intro yields to an unsettled, multi-meter, multi-key accompaniment under a plaintive saxophone melody line at 0:59. We’re thrown headlong into a bass-heavy, groove-driven solo section for the sax at 2:32, clearly in 6/4 time. The clearest pivot in tonality arrives at 3:46; from there, the piano solo and rhythm section rebuild gradually. We eventually return to the maelstrom, with Bob Sheppard‘s sax lines navigating skillfully over the turbulent, angular accompaniment.

Franz Liszt | Nocturne #3 (“Liebestraum”)

Franz Liszt‘s Nocturne #3 (“Liebestraum,” 1850) begins in Ab major and jumps to B major at 1:28. At 1:45, it begins a rapid cycle through other keys, starting with C major. Pianist Matyas Novac delivers this Romantic period gem with such mastery and reverence!

But don’t take our word for it: Pianotv has produced an insanely detailed description of the piece (second video) — by request, no less!

Bill Evans | Here’s That Rainy Day

Jazz pianist and composer Bill Evans was the winner of seven Grammy awards and an inductee into the Downbeat Jazz Hall of Fame. Discogs.com calls Evans “one of the most famous and influential American jazz pianists of the 20th century. His use of impressionist harmony, inventive interpretation of traditional jazz repertoire, and trademark rhythmically independent, ‘singing’ melodic lines influenced a generation of pianists.” Evans was an integral part of the ensembles of Miles Davis and Paul Motian, among others, before moving into his sustained work as a jazz trio leader.

“Here’s That Rainy Day” (music by Jimmy Van Heusen and lyrics by Johnny Burke, 1952) was first heard as part of the Broadway musical Carnival in Flanders. Our Twitter follower @cedgray submitted this solo piano tune: “…the best modulation is at 1:59. There’s an augmented modulation: starting in B, it moves through G, Eb, and then back to B.” There’s another big harmonic shift at 3:53, among others.

Herbie Hancock | Palm Grease

From Dave Mandl, who follows us via Twitter: “Palm Grease,” from Herbie Hancock‘s Thrust (1974).

After the tonality wanders around a bit in the first few minutes of the tune, a stronger key change happens at 3:00, where Dave explains that “the piece moves from a bridge in F minor back to the tonic, A minor. I’ve always loved the way the bassist (Paul Jackson) slinks back to A minor. That main bass riff is a classic — the drum beat, even moreso. The piece is in 4/4, but drummer Mike Clark kind of splits it up as 9/8 + 7/8. It’s got to be one of the greatest funk grooves of all time — and that key change is one of my favorites.”

Ludwig van Beethoven | Sonata #14 in C Minor (“Moonlight”)

Today we are featuring the first movement (Adagio Sostenuto) of Ludwig van Beethoven‘s iconic Moonlight Sonata (#14 in C Minor, 1801). One of the composer’s more prominent students, Carl Czerny, described the movement as “a nocturnal scene, in which a mournful ghostly voice sounds from the distance.” According to biographer Alexander Thayer, the movement was immediately and overwhelmingly popular — Beethoven was said to have been irked by this development to the point that he remarked to Czerny, “Surely, I’ve written better things.”

The piece modulates many times throughout. Just for starters: C# minor at 0:00; E major at 0:40; and B minor 1:12.