I'm having trouble combining the two in a useful way.
The best I'm seeing are some really inelegant Bard 4/Psychic Warrior X or Sublime Chord builds that happen to have PsyWar/Cerebremancer levels tossed in.
What would be easier, but rely on dipping into 3rd party content (namely a pretty prolific and well-regarded WotC writer's side project endorsed by one of the best-regarded 3rd party publishers, would be Keith Baker's Thoughtsinger
(power list here
), which does a psionic bard in a pretty usable way. Throw some Hidden Talent and Expanded Knowledge in for the relevant PsyWar powers, and it would probably match your concept.