I updated the sequencer I showed in yesterday’s video. You can download the new version from the same URL:

http://www.charlie-roberts.com/Control/interfaces/sequencer.js

In addition to giving a 8 x 16 drum grid to program beats, the sequencer also has 8 multisliders (effectively step sequencers) in it that you can use to send volume changes, filter messages, whatever. The slider step sequencers are mapped to CC 10 – 17. You can change which one you’re controlling using the slider in the upper right corner. BPM control is right underneath.

I posted an Ableton .als with the midi mapping all setup to control an Impulse (multisliders mapped to volume).

http://www.charlie-roberts.com/Control/misc/ableton/Control_Sequence_Demo2.als

Unfortunately I uncovered a few bugs with the multislider widget. They’re fixed in this interface (I overwrote the slider widget javascript) for the most part, but a couple of the bugs will have to wait until the next app update.

8x16 step sequencer in Control

iTunes Link

2.5 weeks and two demo videos later and Control is approved for app store distribution. It should go live in the next 24 hours.

In preparation of people wanting to create their own interfaces I’ve uploaded a template file to the interfaces folder. This file just includes a button that brings up the main tab menu and a button that refreshes the current interface. The refresh button allows you to make changes to your JSON (such as adding or moving widgets) and then see the changes immediately after pressing refresh. The refresh button only works if your computer still has the same IP address that it had when you originally downloaded the interface. If the IP address of your computer changes, you can simply reload the interface by adding it again in the Interfaces tab, and then the refresh button will work with the new address.

I’m also including a screenshot from the iPad App Store showing the MultiTouchXY widget tracking 12 finger positions. Although the iPad / iPhone can only track 11 fingers concurrently you can have many more positions tracked in the MultiTouchXY widget and move around different sets of touches simultaneously. This interface also shows how scripting allows you to easily add more touches to track using the “add touch” button.