GrooveGrid – Music At Your Fingertips

With the new app from the German startup apps4use, it’s dead easy to create groovy music while listening to it at the same time. All you do is slide the tiles that represent the individual instruments into the various zones. On each zone, you can hear a different part of the interactive track. While the guitar plays a hard, staccato-like riff when it’s on the zone with the flame symbol, a melodious solo begins as soon as you slide it over to the panther zone. If you move it back to the central area, it falls silent again. Once you add the drums, bass, and synthesizer to the guitar, you soon feel like a rock star impressing the audience with your amazing talent.

On smartphones there are 10 different zones. On tablets there are 12. The ways of combining the individual components are therefore almost endless. The tracks are composed in such a way that random combinations sound good and right. No previous knowledge of music is required. You don’t have to add or remove the instruments in time to the music, because the app corrects small timing errors automatically. A slide control allows you to adjust the volume of the individual instruments or of the app as a whole. A short video on YouTube shows you how the app works.

In terms of the tracks themselves, the focus is on high sound quality. Most of them were recorded in a studio specifically for apps4use. The sounds are designed in such a way that they sound good on both small speakers – like those integrated into the devices – and big hi-fi speakers. Because of the sounds’ high quality, the app is relatively large – 6 MB – which is why it is usually installed on the device’s SD memory card as standard. The full-fledged interactive track ignition! is already included in the free app. More tracks from different genres are currently being developed and can be purchased separately. There are plans to work with a variety of musicians in the future. What’s more, upcoming versions are slated to have a recording function that will enable you to record and listen to your own compositions, and then share them with others.

The app supports smartphones and tablets with a processor speed of at least 1 GHz and Android 2.2 or higher. Because the idea is that the tiles are moved around simultaneously, the device should be multitouch-enabled.

GrooveGrid was created in a joint venture between apps4use and the composer and sound engineer Jan Hofmann from Stuttgart, Germany. apps4use has dedicated itself to developing user-friendly apps for Android. Because Android does not inherently support this particular type of app, a great deal of programming work was required before the app could see the light of day. Performance-critical parts were implemented natively in C++.

When designing the user interface, the team concentrated on not distracting users from making music. They ensured that the flow remains constant, for example, by not interrupting it with changes of context. The concept is especially suited to Android devices with their very high latency in audio playback, because interaction doesn’t have to be 100% in time.

After a beta test phase lasting several weeks, where GrooveGrid was rapturously received, this music app for the Android platform – which is easy-to-use and has excellent sound quality to boot – has now hit the market. Users have a band at their fingertips that enables them to make music on a mobile device and then enjoy it themselves through headphones, the integrated loudspeakers, or even present it to others on a central sound system. So far, the app is unique on the Android market. Check out the app’s web site at: In the Google Play store, the app is available here:

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