Experimental observations are presented of a new branch of the toroida
l Alfven eigenmode spectrum during ICRF heating of plasmas on TFTR. Th
e identification of the second branch is based largely on direct measu
rements of the toroidal mode numbers of the toroidal Alfven eigenmodes
and by the differences in the time evolution of the frequency spectru
m between the new branch and the original toroidal Alfven eigenmodes.
The new branch has so far only been observed in relatively low edge q
(= 4-4.5) plasmas.