The primary requirement of the contract is to provide management, scientific, and technical consulting services. Infinite and Cubic are to be tasked in the areas of Capability Development Support, Experiments and Evaluation Support, Synergy Support, and Information Technology and Information Management Support.
the guitar is tuned the way it is to maximize it's potential with open strings. If you wanted perfect tuning, you could simply move the second string up to a C and the first string up to an F. The guitar would then be tuned in perfect fourths, all the up the string set. You would have a much more difficult time playing chords with open string however, and you would lose the doubled E strings.
There are 12 possible keys any particular song can be played in. This is because of the 12 notes on the piano keyboard, A, A#/Bb, B, C, C#/Db, D, D#/Eb, E, F, F#/Gb, G, and G#/Ab. A song can be played so that any one of these twelve notes will be the tonal center or home base.