We hear you: amidst the various music doodling tools calibrated for casual taps on a phone screen, you want something you can actually make your own with your own sounds. Here’s one example of that: triqtraq. It’s got the “tap it on the bus to improvise a pattern” feel of some of the apps we’ve seen lately, but without sacrificing the sort of control that might keep you coming back to it. And because it lets you include your own samples, there is some depth. (No Audio Copy/Paste, though, before some reader chimes in and points that out.)

Creators Sebastian Schatz, Olaf van Zon, and Joerg Peschel say that they wanted to scratch an itch similar to the one we’ve heard from readers. They write in the press release: “With this app, we (a bunch of friends that are crazy about electronic music) are trying to take music jamming on the iPhone to the next level. Instead of creating an app that simplifies the creation of music on an iPhone so much that you are bored with the possibilities within a week, triqtraq gives you a lot of flexibility.”

Features:

create musical patterns fast and intuitively, by programming live or by using the ‘step edit’-feature
automate parameters like pitch, filter, delay, decay and level in real-time
change samples or sample kits on-the-fly while jamming
edit multiple tracks simultaneously
store up to 16 patterns and 32 samples per session
specify the length of a sequence per track, or set the automation length for each parameter individually
switch seamlessly between patterns
use the loop range feature to create poly-rhythmic sequences
use sounds from the 350+ factory sample library
import your own sounds via iTunes file sharing

Find it in the CDM apps section:
http://apps.createdigitalmusic.com/apps/triqtraq-jam-sequencer

Among other information, the developers have loads of tutorials on their site:
http://www.triqtraq.com/index.php/tutorials

What would you want in your pocket for DJing? How about some key recognition and tracking, key mixing aid, BPM tap — and a flashlight (torch)?

For the DJ who cares about mixing songs together in key and precise tracking of BPM, automatic recognition may just not cut it. One DJ and developer, Pete Simpson, decided to solve that problem – and like a lot of software ideas, initially built that solution for himself. He turns the ever-popular iPhone into a handheld, pocketable companion for DJ sets. I asked Pete to explain not only what the software does, but what it means in his DJ workflow.

Whether you’re obsessive about mixing in key or new to some of these ideas, the answers reveal what this app might do for you, as well as how Pete DJs. (I can also imagine this being useful to remixers tracking a lot of tunes, as well as DJs.) Pete writes:

I’ve recently published an app for the iPhone called DJ Tools. It is something I wrote for myself maybe a year ago, and I use it so much, I thought it might be useful for others. I found automatic key recognition software to be too inaccurate for my needs. D JTechTools did a recent article, and their tests [found] between 20%-40% accuracy for the three products tested. I also note that Beatport and other sites supplying key information seem to use the same automatic software to do so.

Ed.: That’s en excellent DJ TechTools write-up, covering Mixed in Key 5, Rapid Evolution 3, and BeaTunes 3: Key Detection Software Showdown: 2012 Edition

I used to key my own songs with a synth to act like a tuning fork. I wrote an app that does the same, in effect: it will play a chord from any of the 24 major and minor diatonic scales so you can compare with a song you’re listening to. It has a standard tap BPM button. It also displays the other musical keys that will mix with the selected key with the least number of discordant notes (based on the circle of fifths). It gives the standard music notation and the key code notation used by some DJ software. I put a torch on it — bit random I know — but I always forget to bring one, and end up groping around plugging my kit into mixers in the dark. [That's a flashlight, for you fellow Yankees.]

Its a niche app, but I think DJs who are already manually keying their new tracks could find it useful.

So, how does he use it, in practice?

I use tool primarily when I buy music. I will get the tunes into my DJ rig, and play the first tune. I move the track to a part of the music score that has easily identifiable tonal information (a melody line, or bass line) and compare the tune playing to one of the tunes played by hitting the key buttons on the app.

Once I’ve identified the musical key I’ll tap the screen to get an accurate estimate of the song tempo which I use to warp the track.

Once done, I’ll mark the key in my tune’s metadata. Once complete, I don’t need to use the tool (I know the circle of fifths) but if I didn’t I can also use the tool to inform me of harmonic keys that will match the key I’m pressing. For example, I’m spinning a track in A Major, I know the most harmonious key would also be A Major but I would like to shift into another key (I have a lot more songs in other keys, and I’m running out of A Major). So, I press the A Major button and the display informs me that the keys E Major, F Sharp Minor, and D Major all share similar harmonic frequencies and will blend smoothly without disharmony.

That’s about all there is to it. It is a tool for DJs with a basic music training or understanding, who wish to add more depth to their sets by actively considering the keys the tracks are in and mixing coherent keys with it.

The technique sounds great, most decent DJs already do this subconsciously. There are a couple of tutorials on my website that explain the theory and how to use the tool. I’m working on writing more articles but also run a full time job and DJ when I can, so time is precious!

To learn more…
How to use the app:
http://operandlabs.com/tutorials/item/6-how-to-use-dj-tools

And if you’re not familiar with the Circle of Fifths (or, if you like, the Circle of Fourths), get schooled:
http://operandlabs.com/tutorials/item/1-the-circle-of-fifths

Website: http://operandlabs.com
DJ Tools on CDM Apps (read, install, review): DJ Tools @ apps.createdigitalmusic.com

In the latest take on sonifying data in musical form, iPhone app Astro Cantus plots star data from the universe as musical notes. It turns the the sphere of heavens above the Earth into a massive piano roll.

Co-founding developer Rocky Alvey, according to the creators, dismantled a music box as a kid, and that music box notion (yet again) is a big part of the concept here. What’s notable is that the app’s sonification does indeed represent not only the stars themselves but some of the data – spectra of the stars are translated into pitch. And there are a lot of stars in there.

The musical representation itself is a bit limited: you get either chimes or a piano playing a pentatonic mode, and some control over spectrum and magnitude. Speaking as a composer who has occasionally played with it, that’s the challenge with this sort of work: making musical paradigms represent the data is no small obstacle. But the developers also say this is just a (very pleasing) first step, with more interactive features and live modes and additional sounds and scales to come.

http://astrocantus.com/
US$1.99 on the App Store

Amusingly, I’m writing this as my KCRW music stream is playing Bill Frisell’s cover of The Beatles’ “Across the Universe.” Which is more compelling as a commentary on the world? I’m not sure.

Nothing’s gonna to change my world.

Thanks to West Latta for the link; via TreeHugger’s Jaymi Heimbuch:
iPhone App Creates Music from Stars and Galaxies

We hear your opinions in comments (sometimes loudly). Now it’s time to be counted. Which computing platforms do you own, and which do you use for music – desktop Windows, Mac, Linux, mobile iOS, Linux, Android? We’re not interested in what you don’t want to see (sorry, trolls), but we do want to know what you want to see more of. Connecting to the platforms you care about is important to CDM. This isn’t a popularity contest – I always enjoy the chance to write to an underserved minority. But it is a chance for us to look at who’s out there, and we’ll share the results. (It’s been a couple of years since our last survey, and a lot has happened.)

I’m not offering an incentive for this survey, for fear it might bias the results, but tell your CDM reading friends to answer – it’s democracy in action.

Answer now… Survey closes 11:59pm Sunday, August 8!

Direct link: [mobile device-friendly for iPhone/Android/etc.]
http://cdm.platform.sgizmo.com/s3/

Want to register your vote on the visual side? See our parallel survey for Create Digital Motion.

Embedded survey below. (RSS readers will likely need to click through to the site.)

Good news: Masayuki Akamatsu, the brilliant Max/MSP developer who first bridged the popular modular audio and multimedia environment to the Wii remote (see aka.wiiremote), is on the case. It’s still early in development, and for now is an extremely simple implementation: it only routes buttons and text on a Safari webpage to a Max/MSP patch. What’s cool is that it uses the OpenSoundControl (OSC) protocol to do it (with PHP on the Web end), and it works (you can even use it now if you’ve got an iPhone):

aka.iphone Preview
Discussion on the Cycling ’74 Forums

Let’s talk about what this is not: it’s not multi-touch. In fact, if you want buttons for an interface, you could use a US$20 numeric keypad. This helps demonstrate just how little Apple has done to support development on their iPhone. The multi-touch capabilities are reserved by the Safari browser for zooming, and not much else. Given that interface design and gestures are a big part of the iPhone formula, that means everyone is missing out on one of the important capabilities of the phone. Given that the rest of the mobile phone industry is going to be gunning for Apple’s phone in the coming months, I’m holding out hope — even if faint — that Apple will open up this aspect of their phones. Supporting music and visual artists isn’t, and shouldn’t, be high on Apple’s priority list for iPhone. But the entire development community could help differentiate the iPhone with better access to hardware input.

In the meantime, what this is is another demonstration of how cool Masayuki is, and how great it is that Max/MSP/Jitter makes it possible to do this stuff. There’s lots of discussion of open source/free software, and rightfully so. But part of openness is also extensibility, and it’s something proprietary software can benefit from, as well. Max/MSP is the definition of an extensible proprietary platform — musicians and artists can create powerful custom tools and even code their own objects using the same interface as the developer. For everything else, we’ll just have to keep hacking.

(Thanks to vade for spotting this before I did, over on Create Digital Motion.)