The magnetic field/temperature phase of (TMTTF)(2)PF6 is established using
C-13 NMR and cantilever magnetic force measurements. At low temperatures an
d above a critical field B-c approximate to 19T, spectral broadening occurs
signalling the onset of the incommensurate phase of the Spin-Peierls state
. There is well-defined structure in the high-field C-13 lineshapes which i
s not included in the standard soliton lattice description for the high-fie
ld phase.