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Description: For the inaugural Reason Challenge which tasks us with composing a 30 second or less drum solo, I decided now would be a good time to go ahead and try something I've been planning for a while now, namely recreating an Irish jig performed with a bodhran (an Irish drum) and doing it entirely within Reason.
Here's a simple jig I recorded with a real bodhran:
http://www.capesius.com/reason/bodhran_solo.mp3
The challenge I decided for myself is to try and approximate this as closely as possible using only subtractors for the sounds and matrixes for the sequencing.
Now, if you listen closely, you'll notice a few things going on in the recording. Aside from the impact of the tipper (the small stick used to strike the bodhran) against the skin of the bodhran, you'll also hear the lingering hum of the skin. You'll also notice that the pitch of the hum goes up and down. This is because I'm pressing my hand against the back of the drum and moving it around, giving me a modicum of control over the pitch. Any analog bodhran I create will also have to be able to do this. In addition, about half way through the song, you'll hear some rim shots. I need to create these too.
As it turns out, the Subtractor is perfectly suited to emulating all three of these sounds. In particular, I was able to take full advantage of the dual oscillators, using one sinewave to mimic the impact of the tipper against the skin, and the other to handle the hum of the vibrating skin. A second subtractor was added to handle the rimshots.
Controlling the pitch of that hum is easily achieved by adjusting the semitone pitch of oscillator 2. Popping that subtractor into a combinator and assigning rotary one to Osc 2 Semi makes adjusting the pitch of the skin as simple as turning a knob. In addition, adjusting the Amp decay upwards makes the hum more pronounced, and adjusting the Amp Release upwards makes the hum linger longer.
To sequence the thing, I used two matrixes. I could have used one, but I felt creating two matrixes - one to sequence the tipper hitting the skin, and the other to sequence the movement of the hum pitch - allows for more flexibility. It also has the added benefit of allowing me to view both the tipping and the skin motion side by side as the sequence plays, which is kinda cool.
If you want to get to the nuts and bolts of how I tweaked the subtractors, built the combi (including the pretty spiffy skin I made for it), and sequenced everything, I would encourange you to take a look at the .rns file. Any feedback is greatly appreciated!
Enjoy!
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