[sdiy] Keyboard Controller Question

[Jesse Yoder]

Re: Single Bus (1 SPST per key) Keyboard to CV, Gate and Trigger
(http://www.musicfromouterspace.com/analogsynth/keybrdcontroller.html)

In page one of the schematic, there is an array of resistors between
switches.  I have two questions re: this schematic.

First, which end of the switch/resistor array is the "high"
(pitch-wise) end of the keyboard and which end is the "low" end.  (the
end with the diode and Q1 or the end with IC1?)  I want to make sure
to wire it properly.

Secondly, is there any place to buy these resistors in a DIP array? 
It could be SMT or regular DIP - I don't care.  The problem is they
need to be 1% tolerance, and any arrays I've found are 5% at best. 
Any help on this?

Thanks for your help,
~~Ponyboy