@pselodux: I totally understand where your coming from. A computer keyboard, for the most part, is quicker than both gamepad and touchscreen input methods.
The thing is, if you live in a tiny one bedroom apartment where the only thing that separates you from your neighbours is a false wall made from one sheet of medium density fibreboard then a computer keyboard is not an option. All that rattling of the arrow keys while using a tracker will make angry. In that situation a touchscreen or gamepad tracker is a godsend.
Also, I would argue that some functions are actually quicker in sunvox touchscreen...for example, navigation by swiping around is a lot faster than hammering the arrow keys to get around, or when you open the toolbar, copying and pasting can be marginally faster than 'ctrl c - ctrl - v' method.
But yeah, keyboard is generally the quickest way, plus it is cool for jamming on as if it were a midi keyboard.
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"Yeah, I tried making some tracks with Sunvox on a 10" tablet and gave up after several attempts. Also tried Nitrotracker on DS many years ago. "
Please dont compare Sunvox (a serious modular synth/sampler, with an excellent tracker style sequencer) with nitrotracker (an unfinished fasttracker 2 clone which does not even have any of the basic effects commands included).