Bardic Magery

Magery can be bought with the Song Limitation (cheaper)
Bards can also gain the Channeling Advantage (allowing deity or other power to flow through them) with it based off of Singing (or other musical ability) instead of based off of Will as normal.

Musical Influence could be a Very Hard core skill for Bardic Magic using the Ritual Magic system

BARD-SONG
This is the power of magical song. Its abilities are subject to the Bard-Song limitation. Rolls to use them are made at a bonus equal to the bard’s Bardic Talent level.

Power Modifier: Bard-Song -30%

Bard-Song abilities require the bard to sing or play a musical instrument at skill 14+; all effects end immediately if he stops. Anything that affects others only works on targets who can hear the music, while any messages or instructions the bard sends have to be hidden in song. Bard-Song abilities are also subject to the constraints on wizardly magic: they need mana to work, Dispel Magic can end their ongoing effects, and modifiers such as the -5 for low mana and penalties for Magic Resistance apply to rolls to use them.

Bard-Song Abilities
Empathy (PM, -30%) [11]; Mimicry (PM, -30%) [7]; Mind Control (PM, -30%) [35]; Rapier Wit (PM, -30%) [4]; Speak With Animals (PM, -30%) [18]; Subsonic Speech (PM, -30%) [7]; Telecommunication (Telesend; PM, -30%) [21]; Terror (PM, -30%) [21]; and Ultrasonic Speech (PM, -30%) [7].

Bardic Talent 8 points/level
Bardic Talent both adds to Bard-Song rolls and lets the bard cast Communication and Empathy and Mind Control spells (only!) as if he were a wizard who had the same level of Magery with the Song limitation.

Bardic Skills
Those with any points in Bard-Song can learn Captivate (p. B191), Hypnotism (p. B201), Musical Influence (p. B210), Persuade (p. B191), Suggest (p. B191), and Sway Emotions (p. B192).