Looking at the Bard, I see him with weapon training a bit better then the thief, so we will give him the Cleric / Druid / Monk combat chart.
As for Saving Throw, he will save as per the Thief / M-U table.
His Prime Attribute will be Charisma. To make it more relevant, we will give him an extra 1st level spell / song for a Charisma of 15 or better.
As for spells / songs, we will raid the spell lists of the M-U, Cleric and Druid. He will gain spells / songs at a slower rate then the main casting classes: at Bard - 1 : 1st level spells, Bard - 4: 2nd level spells, Bard - 7: 3rd level spells and finally at Bard - 10: 4th level spells. Spell progression table and spell lists are being tweaked (and probably hard to format on my iPad, so they will need to wait at least until tonight).
I want to make using an instrument beneficial to the Bard, so I am thinking using a two handed instrument while casting a spell / song adds 2 levels to the caster's effective level (but it also means no weapon in hand while casting).
I still need to work on other class abilities...