The aQWERTYon pitch wheels and the future of music theory visualization

The MusEDLab will soon be launching a revamped version of the aQWERTYon with some enhancements to its visual design, including a new scale picker. Beyond our desire to make our stuff look cooler, the scale picker represents a challenge that we’ve struggled with since the earliest days of aQW development. On the one hand, we want to offer users a wide variety of intriguing and exotic scales to play with. On the other hand, our audience of beginner and intermediate musicians is likely to be horrified by a list of terms like “Lydian dominant mode.” I recently had the idea to represent all the scales as colorful icons, like so:

Read more about the rationale and process behind this change here. In this post, I’ll explain what the icons mean, and how they can someday become the basis for a set of new interactive music theory visualizations.

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My first Musicto playlist

I have started working with a startup called Musicto, which creates playlists curated by humans around particular themes. For example: music to grieve to, music to clean house to, music to fight evil. My first playlist is music to sing your hipster baby to sleep.

Music to sing your hipster baby to sleep

These are songs I have been singing to my kids, and that I recommend you sing to yours. It isn’t just a playlist, though. Each track is accompanied by a short blog post explaining what’s so special about it. New tracks will be added regularly in the coming weeks. If you’d like, you can follow the playlist on Twitter. If this sounds like the kind of thing you might enjoy putting together, the company is seeking more curators.

Noteflight as a DAW

The good people at Noteflight have started doing weekly challenges. I love constraint-based music prompts, like the ones in the Disquiet Junto, so I thought I would try this one: compose a piece of music using only four notes.

Noteflight weekly challenge

The music side of this wasn’t hard. My material tends not to use that many pitches anyway. If you really want to challenge me, tell me I can’t use any rhythmic subdivisions finer than a quarter note. Before you listen to my piece, though, let’s talk about this word, “compose.” When you write using notation, the presumption is that you’re creating a set of instructions for a human performer. However, actually getting your composition performed is a challenge, unless you have a band or ensemble at your disposal. I work in two music schools, and I would have a hard time making it happen. (When I have had my music performed, the musicians either used a prose score, learned by ear from a recording, or just improvised.) Noteflight’s target audience of kids in school are vanishingly unlikely to ever hear their work performed, or at least, performed well. Matt Mclean formed the Young Composers and Improvisers Workshop to address this problem, and he’s doing amazing work, but most Noteflight compositions will only ever exist within the computer.

Given this fact, I wanted to create a piece of music that would actually sound good when played back within Noteflight. This constraint turned out to be a significantly greater challenge than using four notes. I started with the Recycled Percussion instrument, and chose the notes B, E, F, and G, because they produce the coolest sounds. Then I layered in other sounds, chosen because they sound reasonably good. Here’s what I came up with: Continue reading

Research proposal – Hip-Hop Pedagogy

Final paper for Principles of Empirical Research with Catherine Voulgarides

Research questions

Jamie Ehrenfeld is a colleague of mine in the NYU Music Experience Design Lab. She graduated from NYU’s music education program, and now teaches music at Eagle Academy in Brownsville. Like many members of the lab, she straddles musical worlds, bringing her training in classical voice to her work mentoring rappers and R&B singers. We often talk about our own music learning experiences. In one such discussion, Jamie remarked: “I got a music degree without ever writing a song” (personal communication, April 29 2017). Across her secondary and undergraduate training, she had no opportunity to engage with the creative processes behind popular music. Her experience is hardly unusual. There is a wide and growing divide behind the culture of school music and the culture of music generally. Music educators are steeped in the habitus of classical music, at a time when our culture is increasingly defined by the music of the African diaspora: hip-hop, R&B, electronic dance music, and rock.  Continue reading

Designing a more welcoming aQWERTYon experience

This post documents my final project for User Experience Design with June Ahn

The best aQWERTYon screencap

Overview of the problem

The aQWERTYon is a web-based music performance and theory learning interface designed by the NYU Music Experience Design Lab. The name is a play on “QWERTY accordion.” The aQWERTYon invites novices to improvise and compose using a variety of scales and chords normally available only to advanced musicians. Notes map onto the computer keyboard such that the rows play scales and the columns play chords. The user can not play any wrong notes, which encourages free and playful exploration. The aQWERTYon has a variety of instrument sounds to choose from, and it can also act as a standard MIDI controller for digital audio workstations (DAWs) like GarageBand, Logic, and Ableton Live. As of this writing, there have been aQWERTYon 32,000 sessions.

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The Groove Pizza now exports MIDI

Since its launch, you’ve been able to export your Groove Pizza beats as WAV files, or continue working on them in Soundtrap. But now, thanks to MusEDLab developer Jordana Bombi, you can also save your beats as MIDI files as well.

Groove Pizza MIDI export

You can bring these MIDI files into your music production software tool of choice: Ableton Live, Logic, Pro Tools, whatever. How cool is that?

There are a few limitations at the moment: your beats will be rendered in 4/4 time, regardless of how many slices your pizza has. You can always set the right time signature after you bring the MIDI into your production software. Also, your grooves will export with no swing–you’ll need to reinstate that in your software as well.

We have some more enhancements in the pipeline, aside from fixing the limitations just mentioned. We’re working on a “continue in Noteflight” feature, real-time MIDI input and output, and live performance using the QWERTY keyboard. I’ll keep you posted.

Testing the effects of game music on cognition

For Jan Plass‘ class on research in games for learning, I’m working on an experiment testing the effects of game soundtracks on cognitive performance. The game in question is All You Can ET, developed by the NYU CREATE Lab.


Here’s the music:

You’re hearing four versions of the basic 32-bar loop: fast major, fast minor, slow major, and slow minor. We’ll be playtesting each of these versions to see how (or whether) they affect game performance.

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Meet the audio file formats

There are a lot of audio file formats. Here are the ones you encounter most commonly.

Analog formats

Analog - vinyl

Recorded sound consists of fluctuations in electrical current coming off of a microphone or mixing desk. Before computers, you translated that current into tiny smooth wiggles in the shape of the groove cut into a vinyl record, or tiny smooth wiggles in the alignment of magnetic particles embedded in tape. Dragging a needle along the groove or running the tape over a magnet reproduces the original electrical current.

Examples: vinyl, reel-to-reel tape, cassettes

Pros: Analog formats can sound really great if your media are in good condition, and if you’re listening through a good sound system.

Cons: Analog formats can sound terrible if the media get scratched, dusty or demagnetized. You need to be very careful about physical degradation–every time you listen to a tape, you scrape a little bit of the coating off. You can’t make copies of analog media without introducing noise. And analog gear is expensive.  Continue reading