Todd Rundgren | Hawking

Here’s a 1989 tune by musician, composer, and producer/engineer Todd Rundgren written in honor of Stephen Hawking, the theoretical physicist and cosmologist. It’s a gospel meditation on the challenges of grasping the unknown and maintaining one’s love for humanity.

The modulation arrives with the bridge at 2:57, reverting to the original key at 4:07.

The Tubes | Amnesia

San Francisco-based The Tubes started with unhinged neo-Burlesque performances in the 1970s. They morphed into a unique pop/glam/funk fusion in the 80s, never abandoning their careful balance between keyboard and guitar. In keeping with the band’s bizarre streak, its frontman/lead vocalist/co-writer, Fee Waybill, was once on the band’s roadie team!

There are several brief key-of-the-moment spots in 1981’s “Amnesia.” The bridge (2:27) starts off with a modulation, transitions to a new key at 2:46, then settles back into the original key at 3:05.

Sergio Mendes | Pipoca

Like much contemporary Brazilian jazz, Sergio Mendes‘s “Pipoca,” composed by Hermeto Pascoal, is loaded with modulations. This 1992 track starts off with a tumbling, mischievous feel, throwing us its first modulation at only 0:16 (!) after a playful ascending chromatic run.

The intro sets the scene for key changes which continue to to turn on a dime as they arrive frequently throughout the track.

AJ Rafael (feat. Deedee Lynn Magno Hall) | Only Us (from “Dear Evan Hansen”)

Singer/songwriter AJ Rafael covers “Only Us” (2017) from the musical Dear Evan Hansen, featuring Deedee Lynn Magno Hall. The first modulation (1:43) somehow sneaks up on the listener gradually, while the second (2:55) clearly announces itself.

Madness | Our House

Madness occupied a very specific corner of 1980s New Wave — a UK-based ska/pop hybrid band that that was more about the music than the era’s flashy fashions. “Our House,” released in 1982, reached top-5 status in the US, Canada, the UK, and much of Europe.

The tune cycles through piles of modulations: 0:46, 0:54, 1:10, 1:18, 1:26, 1:41, 1:49, 2:05, 2:13, 2:44, and then every four bars all the way to the end.