Equation of motion coupled-cluster (EOM-CCSD) predictions of structures and electronic excitation energies for the recently detected Ca+-acetylene pi-complex confirm three experimental state assignments, but suggest reinterpretation of the signals associated with the (2) B-2(1) and (2) B-2(2) states that correlate to the P-2 <--S-2 Ca+ atomic transition. The originally assigned 0(0)(0) band for the (2) B-2(1) state corresponds to the computed excitation energy to the (2) B-2(2) state and simple reassignment is proposed. The true (2) B-2(1) state was not assigned in the original spectrum. However, the computed oscillator strength is large and its optimized geometry is similar to that of the ground state. Furthermore, the experimental band tentatively attributed to the onset of the symmetric C-H stretching progression of the assigned state has a relative energy conspicuously close to the computed electronic energy for the unassigned (2) B-2(1) state. Based on the computed energy separations of the optimized EOM-CCSD structures, reassignment of this vibronic band to the 0(0)(0) line of the (2) B-2(1) state is proposed. The newly assigned bands are also compared to the analogous transitions in the beryllium-and magnesium-acetylene pi complexes.