"The number in the ( ) after the metatype is points for your special attributes (Magic/Resonance/Edge, so my understanding is you can do a B technomancer, C Elf and still have 6 resonance if you wanted to do that instead of just doing an A priority on TM. Or you can put that towards edge of course too."
So could someone do Magic A, which gives a Magic rating of 6, and Race E, which gives you Human (1), then add the 1 to your Magic attribute and have a Magic rating of 7?