Showing posts with label MIDI file. Show all posts
Showing posts with label MIDI file. Show all posts

Thursday, 4 March 2010

The new keyboard

For years I have been promising myself a new MIDI controller keyboard. In about 1990 I was lent a Cheetah Masterseries V5 keyboard that was surplus to the requirements of its owner. This replaced a Yamaha home keyboard that had stopped working properly. My generous benefactor was of an itinerant nature and there was never a good time for him to take back the keyboard which would, after all, have been merely an inferior back-up for his new machine. In the end he moved to Boston, Massachusetts, I also move house and we lost touch.

First made in 1987, the Cheetah predates the home computing age and was designed to control other keyboards and those sound generating boxes and samplers that we first thought of as keyboards without keys. I only ever used it for playing notes into Cubase, my music software of choice. I thought it would eventually just pack up but but what finally did for it was a small rabbit called Pumpkin.

During the cold weather Pumpkin turned into a house rabbit. Rabbits are sociable beasts and need to be kept in pairs so he lived indoors, in the company of humans, for the sake of his mental health. All went well to begin with but then he got into chewing through wires. In a short space of time he ate through a USB lead, three telephone extensions cables, the wire of a Wii sensor bar and the power supply (switched off at the time but only 9v anyway) lead of the Cheetah keyboard. Now Pumpkin, neutered, lives outside with Pirate, also neutered.

So, the perfect excuse to replace the keyboard. I did fix the mains lead but then the wire gave up right next to the 'wall wart' transformer. I soldiered on, scoring an animation by walking over to the piano, playing for a while and then drawing the notes into Cubase, and auditioning sounds, with the mouse. My work rate ground to a near halt and on Monday I went to my local instrument shop and splashed out on a Novation 49SL MkII. It does all sorts of fancy things that I am only just beginning to get my head around and, at four octaves instead of five, is much more compact. It will cut out a lot of mouse work and that can only be a good thing. The plethora of coloured lights are reassuringly Starship Enterprise and soon I'll know what they all mean and be able to 'make it so'.

And the Cheetah? In January one sold on eBay for £11.50, minus its power supply. I imagine I'll keep this as a spare until I can find a volunteer to give it a home. I may even fix the power supply, which has a DIN plug connector. They really don't make them like they used to - the Cheetah was built to be repaired and serviced. The Novation, unless I am very much mistaken, is destined for land fill sooner or later. I hope it's later.

Tuesday, 17 November 2009

MIDI files for improvisation Part 2

Last week I posted some midi files for improvising in one key. It is possible to improvise against those chord sequences with the notes of one scale only. It's like cycling with stabilizers; completely safe, fun at first but quickly limiting.

This week I want to take it a bit further with the following sequence:

l:C / / / lC / / / lD / / / lD / / / l
l F / / / lF / / / lC / / / lC / / / :l 8 Bar in C midi file

This sequence is in the key of C major but visits the neighbouring key of G major. The D chord in bars 3 and 4 is acting as the dominant chord in G major and you should play an F# against it rather than an F natural. Note that it is not acting as the tonic of D major so don't play C#. If you don't know what I mean by tonic and dominant, don't worry at this stage; the exercise will still work.

Listen to the sequence and you will hear the chords changing. Now play along in C major, changing to G major (the key with F# in) for the bars with the D chord, and back to C major for the F and C chords. When you have mastered this try the same exercise in the other keys (below) and try breaking the rules to see what happens. For instance, play a C# against the D chord and see if you like it. Music is in the ear of the beholder.

The same sequence in F:

l:F / / / lF / / / lG / / / lG / / / l
lBb / / / lBb / / / lF / / / lF / / / :l 8 Bar in F midi file

Play in F major except over the G chord where you play in C major (so no Bb for those two bars).

and the same sequence in G:

l:G / / / lG / / / lA / / / lA / / / l
l C / / / lC / / / lG / / / lG / / / :l 8 Bar in G midi file

Play in G major except over the A chord where you play in D major (so add C# to the F# you already play).

And finally, if none of these symbols mean anything to you and you play entirely by ear then good for you. Feel the changes and let your ears/fingers find the notes that go best.