One object I have in my music production environment click and ports layer is the Chord Memorizer, which can be a great music trick for DJ’s with limited musical skills.

The Chord Memorizer can be a useful music production music theory fix for DJ’s if you just want to quickly put some chords together which will have a good chance of going well with each other. I usually set it up so C plays chord one, D plays chord two, E plays chord three right up to B which will play chord seven. See this if you are unfamiliar with the chord number system. The Roman numerals are along the top.

In a nutshell, you can trigger all the chords in the key of C by using one finger on any white key on the keyboard from C to B which correspond to chord 1 (C) to Chord seven (B dim). All the chords in the same key have a great chance of sounding right with each other.

Chord Memorizer: Musical tips and tricks for DJs

So, first you crack open Chord Memorizer (windows – environment – click and ports – new – chord memorizer) Double click on it to bring up the double keyboard, Choose the note C on the upper keyboard. On the lower keyboard choose the triad of C major by selecting C, E and G like the pic on the left. Double click on the picture to make it bigger.

Next choose D on the upper keyboard and then select notes D, F and A. This will make a D minor triad. Next, choose E on the top and the notes E, G and B on the bottom, this makes an E minor triad. Notice that all the notes are white notes and equal distance in width apart. This applies right up to the B which will be a B dim so repeat until you get there. Now set the key limit on the left to the full range from C-2 to G8. This just tells the environment to use the entire keyboard.

Okay, now you can play all the chords in the key of C. If you up one in the transposition box (under the Key Limit), you’re now playing all the chords in the key of C sharp! If you go up ANOTHER 2 then you’re playing all the chords in the key of Eb. Eb is a hard key to play in – you’re a musical genius!

Here is a handy chart for commonly used chords in the relevant key. And here is a very useful tool you can use to see what notes go into chords and scales in all keys on the keyboard. I used both when I taught Song Writing and Music Theory.

Don’t forget to turn it off by bypassing it using a cable switcher when you have finished; you don’t want to be triggering a kick drum, open hat and snare when you’re trying to find a shaker in your drum kit! See here for more on that. Please don’t think now you know this trick, there’s no need to bother learning an instrument; Chord Memorizer is just a trick for people who quickly need to string a few chords together.

Before I get letters, I am aware that some Dj’s (like myself before I wound down) can play an instrument or two, but if I took a percentage of the DJ’s who have come to me for help, there’s no way we’d be reaching double figures. I would’ve thought we’d get similar stats for musicians who can DJ!

Many people are a bit scared of Logic’s environment and it even puts people off using Logic Pro as a DAW altogether. Logic Pro/Studio’s Environment is the foundation that Logic is built on. It’s been around since the birth of Logic in 1993 and remains pretty much the same to this day. Today we’re going to look at Logic Studio 9′s click and ports layer in the environment window which I think can be the most intimidating. Essentially it takes the midi notes you play on the keyboard and processes them using various objects depending on what you want to do. It does the same thing as the script editor in Native instruments’ Kontakt for all you Kontakt heads out there. Here is a pic of my click and ports page (click on it to make it bigger) It’s a bit more complicated than the Environment click and ports page out of the Logic Studio 9 box but still quite similar.

The strip on the far left is your controller keyboard. The pre process box tells you what you’re physically hitting on your keyboard. The post process box is a display of the notes after they have been processed. In this case, the keyboard is just a graphical display of the notes you’re playing on the keyboard but you can have it post processing or even have another post processing – you can set it up how you like. This is one of the reasons I encourage teaching on students’ personal workstations wherever possible on my music production courses

The Midi Click is your metronome so keep that lurking somewhere. The Octavizer just plays the octave up as well as the note you’re playing and comes set up in Logic Studio 9 (not Logic Pro 8) as standard. I deleted it because I know I’ll never use it nor is it interesting enough to include in any course. I have replaced it with the Delay line which is much more useful. The Chord Memorizer is used to trigger chords you set up to be triggered from one key on the keyboard. You can find and add objects by clicking the ‘new’ drop down menu.

You can access Logic’s environment from the ‘windows’ drop down or hit ‘Command 8′ Sometimes when you’re working on it, it slips behind your main window so I sometimes hit ‘alt’ then select it from the drop down and it becomes a floating window which won’t disappear. Try it.

You will see that they’re all cabled together. Nothing would work if there were no cables involved! All you do to cable things together is grap the ‘nipple’ usually to the right of the device, drag the cable to which ever device or object you choose. The key to my useful set up are the cable switchers, they are not the easiest to find so follow this path: new – fader – specials – cable switcher. I think you can guess the function of a cable switcher. To switch from one cable to the other, just click on the cable switcher itself. You will notice that I have a second cable switcher post the Chord Memorizer; one output feeds the sequencer directly and one makes a stop at the arpeggiator so all those lovely chords you are (not) playing get arpeggiated too. You’re a musical genius!

You can watch the video HERE

With technology advancements and computer processing power as it is now, the whole process of making hit records can be done in home studios, unless of course, you require a real orchestra!

People with home studios often do not realise just how important the acoustic environment is. We tend to get a lot more excited about spending a few hundred quid on a shiny new synth than home studio acoustically treating a rooms walls, ceilings and floors for standing waves. There is also the issue of aesthetics.

My lecture on acoustics can be six hours long and sometimes it can be difficult keeping some of the more musical and less scientific of students interested, specially when I start on standing waves. If we are in a room small enough (a control room or classroom and not lecture hall), a good way of vibing things up is to measure the distance between two parallel solid walls and try and generate a standing wave. You can determine what is the frequency of the standing wave for your room with this simple formula: V / 2d=f

• V = Velocity of sound (343m/sec)
• d = Room dimension in meters (length, width, or height)
• f = Frequency of the standing wave

Other standing waves occur at harmonics of the frequency that is 2, 3, and 4 times the fundamental but obviously, the higher the frequency, the less noticeable they become.

Why not try it yourself. Grab a tape measure and use the oscillator in your DAW. You need to have solid parallel walls in your space. Standing waves are the reason you never see parallel solid walls in a professionally treated recording studio control room.

Neil Johnston from Focusrite showed me the KRK ERGO. Wow, what a little box this is (if it does what they say it does of course). KRK make fantastic nearfield monitors and I would say are a company to be trusted. The first time I listened to a pair of KRK monitors was when I was assisting Mark ‘Spike’ Stent mixing Madonna at Olympic. The article the link goes to was written a few years after. Seems ancient now when he talks about Zip and Jaz drives! He had a pair of KRK 9000′s which sounded fabulous. Back then pretty much all monitors were passive and so were the 9000′s. It seemed crazy to me but a lot of freelance mixers karted around their monitors of choice from one studio to the next but just used whatever amp that was in the studio. Active monitors solved that one.

I’ve always had a problem with bass in my studio. I am lucky to have very high ceilings but unfortunately I think most of my bass gets lost up there in the chandelier. I do get a bit of bottom end but much further back from my seated position in front of the monitors. I have treated my room behind my monitors and I have some bookshelves at the back with act as nice diffusers for the mid frequencies. I could’ve of course have lost the chandelier and replaced it with a huge bass trap but I don’t think my girlfriend at the time would have been feelin’ that! And quite frankly, I like my chandelier, my high ceilings and the position of the studio so I make do for now by sticking my head in certain spots just before any waves get diffused by my bookshelves to check the bottom end. Also, I check in the car which is only on the driveway. It’s inconvenient, but I know the curves so well now in the space, I can make it work.

So maybe the KRK ERGO will be a much more convenient solution for me. It works like those Bose hifi systems by chucking out a load of test tones (all frequencies at the same time interestingly), monitoring them with a microphone and feeding back the data to the software (Mac AND PC btw). The box will then tweak your curve and theoretically, you will get a much ‘truer’ curve where you position the microphone. Gav said he would be able to get one for me to try. I will get back to you with my thoughts i’m sure.

If it is as good as they say, they will sell bucket loads. Given Bose have been doing something similar for the consumer market for years, I wonder why no one thought of doing this ages ago especially now with so many more records being made in home studios. I also wonder if the technology is any better than Bose’s or if there’s any patent. If no, I reckon KRK won’t be the only people making these boxes in 2010. I wonder if it can do anything about standing waves. I didn’t think at the time to ask Neil. Oh, that thought is what got me on standing waves here in the first place!

I do cover standing waves in my acoustics lectures at music production schools, colleges and universities and also in my music production courses in London.