Yes, those are all vocals, mostly snippets. And I eta'd the Bach in Skin Deep into my last post.

The song he was singing in Deception was "Ain't s/he(?) Sweet". He was playing piano when Wilson came over with evidence of the shrunken tumor in House vs God, and I seem to recall reading that the song was called "What a Friend We Have In Jesus". There was some tinkering at the end of All In, too. He was going to play guitar in The Itch, but he stopped to tune it then got distracted. ETA: Socratic Method - was that the one where he was playing something else, then played a line of Happy Birthday to himself?

The song at the end of All In was Hymn to Freedom by Oscar Peterson.

Oh, he also sang (or mumbled?) I Cain't (sic) Say No from Oklahoma! in Here Kitty. I actually laughed really hard at this (even though it was only a line as he walked into his office) because I spent two weeks listening to this song over and over while my friend was getting ready for an audition.

Thank you guys for your help, I realize now how casually I must have looked at those music list because I missed a hell of a lot! Have an updated list, I also included descriptions of when it happened/what was happening. Haven't watched some episodes in awhile, so some of the placements are a bit hazy. anyone know when House is improving in "No More Mr. Nice Guy"? And what's the actual song the Eddie Van Halen solo belongs to? Damned if you Do – 1x05 – Silent Night (Hugh Laurie rendition); House playing piano in his apartment Socratic Method – 1x06 – Happy Birthday, Hugh Laurie Composition; House playing piano in his apartment Control – 1x14 - Baba O’Reilly (The Who); House air piano/drumming in his office to his IPod before Vogler interrupts Role Model – 1x17 - High Hopes (Frank Sinatra); House playing piano in apartment Deception –2x09 – Ain’t She Sweet (originally composed by Milton Ager); House singing when giving Fake test results to Foreman Need to Know – 2x11 – Serenade (From the musical “The Student Prince); House singing as he walks into the team office after having sex with Stacy Skin Deep – 2x13 – "French Suite No. 5 in G Major BWV 816, Allemande" (Johann Sebastian Bach); House playing Piano in apartment All In – 2x17 - Hymn To Freedom (Oscar Peterson); Piano playing in background while House and Wilson play poker House vs. God – 2x19 - What a Friend We Have In Jesus; House playing in apartment when Wilson comes to poker night a day early Half Wit – 3x15 - I Don’t Like Mondays (The Boomtown Rats); The Entertainer (Scott Joplin); House and Patrick duet in patient’s room, another scene House plays his composition alone in patient room when Wilson walks in Human Error – 3x24 - Slippery When Wet (The Commodores); House playing air guitar on his cane when the team interrupts Alone – 4x01 - Eddie Van Halen Guitar Solo; House jamming in his office when Cuddy interrupts with a case Games – 4x09 – Kicked Out (Pussy Galore); House playing guitar for Wilson; Hugh Laurie Guitar and Piano composition It’s a Wonderful Lie – 4x10 - God Rest Ye Merry, Gentlemen (Roy Hargrove); House sings No More Mr. Nice Guy – 4x13 - Piano Improv Adverse Events – 5x03 - Drown in my Own Tears (Ray Charles); House and Lucas jam session at the end Unfaithful – 5x15 - Cuddy’s Serenade (Original Hugh Laurie composition); House playing piano in apartment Here Kitty - 5x18 - I Can't Say No (From the musical "Oklahoma") Saviors – 5x21 - Georgia on My Mind (Hoagy Carmichael and Stuart Gorrell); House playing piano and harmonica in his apartment until Amber interrupts Thanks again everyone for your help, some of the info may be off since I collected it from various sites and added a lot of my own input. If I'm off, please let me know. ETA: added "Can't Say No", forgot when he sang that? During DDX? ETA 2: fixed "Georgia on My Mind" (thanks Boffle)

Georgia on My Mind wasn't written by Ray Charles, though he did an awesome version of it. It was written by Hoagy Carmichael and Stuart Gorrell (1930).

I forget when, I just remember him kind of humming it when he walked into his office.

Does anyone know where I can get a clip of the last few minutes of "Saviors," House's song until the end of the episode?

If you give me about 10 minuites, I'll have it up on youtube. :> ETA: There you go. It's still processing at the moment, I'm not sure how long it takes until it's finished.

Ah, thank you StereoPlay! I tried to grab it but NBC Universal is super-quick, damn!

http://www.megaupload.com/?d=NGS1IF17 Arrrrrrrg. See if that works.

Does anyone remember the episode with the masturbating kid?

Yep - Euphoria, Part 2 ETA: Oops, too slow.