Updated version. Added some lost sessions, updated the Barnyard and H&V session dates with some new information, added some Smiley Smile, updated Related events, and added Good Vibrations at the bottom to show how Brian had a burst of activity as soon as it finished 

It's also worth mentioning (or re-mentioning? I can't keep track of what's been said) that the organ waltz "intro" from months later is not actually an intro, and was never labelled that way - that's something that was lost in translation when the GV box set was made, and the label stuck for TSS too. Brian starts to play "my children were raised..." after that piece on the tape, for what it's worth.

Thanks to both of you for the clarification. So my question is, if the organ waltz section, and the chimes/part 3 (tubular bells) section were not recorded as intros, then what was recorded on December 19 for the H&V session?  The list here says the chimes section was recorded then, however if that is indeed "Part 3" then did Brian already know before January when he cut up BR from Worms that there would be a Part 2 in there? Or was something else complete recorded that day and Chimes got mis-dated?

No worries bro I was hoping you'd see all this.

I think its worth checking with 'sloop' about stuff like Iron Horse being put into Heroes - it seems likely it was but I still think there's a bit of educated guessing going on.

I must say your timeline has been a bit of a revelation:  I think it makes it much clearer how much work had in fact been completed and how focused it was.  I think it got very close to christmas before Brian started taking bits from other songs to put into H&V..?

Does he mean the actual section of iron horse was copied into H&V? Or that the chimes intro and organ intro was based off Iron horse?
With the revised dates, it wasn't until right around christmas when Brian started using other sections into H&V. Perhaps there was a BB team talk after they got back from touring in December about how to proceed. The Chimes (intro) segment could be the marker of the beginning of "H&V '67"

As an aside, I played around with using Our Prayer as an opening track, then the Chimes intro leading into the H&V track, and honestly I dont hate it. If you think of Prayer as a church hymn, the chromatic Chimes bit is  like the conclusion of church bells, thus leading into H&V.  Not probably what Brian intended but still kinda fun as an option. 

mike s, thanks for making this thread, its been incredibly in helpful charting the busy period of late '66
and sloopjohnb, thanks for all your info both here and the lengthy 'Smile was ready in '67' thread. I've learned new dates and production info that I was not aware of before. 

I'll keep on truckin with the Timeline!

From Bellagio, it looks like the dates for the relevant tracks (those that link back to SMiLE) are:

6/29 Fall Breaks... 7/5 She's Goin' Bald 7/10-11 Wind Chimes 7/12 Wonderful

If you decide that you want to go further, all of the dates for the SMILEY sessions are on this page: http://www.bellagio10452.com/gigs67.html

Thanks Don, that's a fantastic site. Although one discrepancy I noticed, and this may explain mike's confusion earlier
It lists the Dec 19th Heroes and Villains vocal session as a lost tape. The timeline here listed that as a Barnyard session, which is what I original assumed to be the actual backing track/animal sounds day. But maybe not.
It then lists Oct 20 as the actual Barnyard date. So if thats true, then HV/IIGS/BY were all recorded by the time Brian made his demo piano recording.

Part 3 is the “chimes “ version of Intro to Heroes (kind of similar to Iron Horse ) recorded in December.

There was an acetate auctioned a few years ago that has the Shape remake/Children we’re raised/ third verse instrumental edit.  The Shape remake was recorded mid December at a session logged as Heroes - the session players and instruments match.  Part of this Shape remake was released on one of the copyright Beach Boys releases - it was a phone recording of part of the acetate by Alan.  Children were raised - instrumental track - was re-recorded later but according to those who have heard the acetate this was an earlier take on it.

Those were part of the acetates from Durrie Parks, which speculated was reviewed by someone (Capitol, AB,ML etc) at one point and decided nothing of real interest could be used for Smile Sessions or whatever. In the original thread from 2013 https://smileysmile.net/board/index.php/topic,15304.100.html (post 113) andy descibes what he heard when he heard them, including two stand out moments, one being IIGS (which shows up at the end of Wake the World sessions) and Bicycle Rider with a kick drum which he could not recall if he had heard it before. Now that kick drum bit WAS BOOTED already, and can be heard on the boot album Heroes and Villians Sessions Vol 2. Which makes me wonder... are there more Durrie Parks acetate boots out there already?? 

Very nice diagram! You might want to flesh it out a bit further by adding the sessions for the "SMiLE remakes"--"Wind Chimes" and "Wonderful," then extending into the "reworked" tracks such as "Fall Breaks" (with its connection to "Fire") and "She's Goin' Bald" (with its connection to "He Gives Speeches") in the June-July '67 time frame.

I'd also suggest using a different color for the day annotations for those June-July '67 sessions, to make it clear that we are now talking about SMILEY SMILE sessions, not SMiLE sessions. I know you were differentiating between '66 and '67 SMiLE session with the two colors, but I'd contend that a third color is needed to show all of the ways that the SMiLE material morphed into SMILEY SMILE.

Thanks Don, I wasn't planning on including the SS sessions, but since its only a month, why not. I made those sessions a new color, including the May Da-Da sessions. If you (or anyone) could link me to some SS recording dates I can get them put in on the chart. 

Oh yeah I'd forgotten about that.  I wonder if it was still in H&V by then or diverted out to IIGS or other..?  Is it logged as a H&V session..?

The inventory here doesnt list it as a H&V section however since i assume it came from the box set liner notes, and the Smile Sessions lists both Barnyard and IIGS with a Heroes and Villians prefix I'd say yes.
Looking at the timeline you see the first workings of H&V in october, followed close by the first workings for IIGS, then a week later Brian plays his piano demo where he plays H&V and IIGS very close together, takes a pause and says.. and then there's another section, before playing Barnyard. which isn't actually started until over a month later, but still before the "new 1967 H&V" which tentatively started a week after that with the "early chimes intro"  I wonder why Brian waited on barnyard so long, unless he was waiting for the other boys to get back to the studio since they were still gone during the other sessions?

Neat! Add "Good Vibrations hits #1" to related events... And maybe when Van Dyke left, and when the Beach Boys toured... And distinguish between vocal and instrumental sessions, and...  

I put some of those in now. If anyone has more accurate dates for the spring tour, I'll update. As well as any other good info to add to this (dates help!) I might spin this off into a new thread once its farther along for more exposure

Not sure about Barnyard being December though - does that refer to the OMP fade..?

All of the information so far (plus a few tidbits from this thread) are from the 2011 post here with the Smile Inventory I posted a little ways up, which says Barnyard had a vocal session on December 13. Of course there may have been corrected date information since then so I'm all ears  
BARNYARD
12-13-66 - vocal session, Columbia

Master take (stereo) (1:01)
Mono mix, from acetate (mono) (1:02)
Mark Linett/Alan Boyd 2011 mix (mono) (0:48)

Taking a first pass at the timeline, each month is split into its respective days which is where each session stripe lies. I started adding some info to the stripes as I go along, may or may not be helpful, except for cases where the song changed styles (wind chimes, wonderful, etc). All this info is based on the dated timeline link in my last post, and the next steps will be to read through these threads for more dates. I had some room at the bottom for now to include some tangetially related events like LP and 45 releases from the BB and Beatles. Also, this chart goes all they way to June 67, just couldn't get it all to fit without zooming out too far.

Which got me thinking... has anyone ever made a visual timeline of the session history for Smile? A nice informative way to seeing what version of what songs were worked on when, and for how long, and when they just stopped completely. I make a very primitive mockup how it could look (apologies for wrong dating but you get the idea ) Something like August 1966 to June 1967 Across the top x axis, and the list of smile-related songs across the y axis, whether it's in appearance order, or track order, abc order, whatever. And then followed by colored bars going horizonally for start and stop dates (august to october, etc) . It could be separated into the different versions (Wonderful ver 1, Wonderful ver 2 Rock with me, Vegetables (demo), Da-Da Taped strings, and so on) And if you wanted to break it down even more, have actual days like Aug 12 - Sept 22.

Id be happy to assist or even set up the table is someone wanted to provide the information!

I would love to see something like this, and I imagine you could make a pretty effective start just using the information in the sessionography that came with the Smile box set....but it would be a whole pile of work for sure!

Great idea, is the boxset information the same as what was listed here? https://smileysmile.net/board/index.php/topic,11250.0.html
That would be a good start, then I'd have to re-read through these 20 pages to find the newly revealed information about some of the session dates and assemblies. Could be a fun project indeed 

First I want to say what a fantastic thread. I learned a whole new slew of information regarding the timeframe and lineup of the some of the songs that I have been wondering about for a long time 

Which got me thinking... has anyone ever made a visual timeline of the session history for Smile? A nice informative way to seeing what version of what songs were worked on when, and for how long, and when they just stopped completely. I make a very primitive mockup how it could look (apologies for wrong dating but you get the idea ) Something like August 1966 to June 1967 Across the top x axis, and the list of smile-related songs across the y axis, whether it's in appearance order, or track order, abc order, whatever. And then followed by colored bars going horizonally for start and stop dates (august to october, etc) . It could be separated into the different versions (Wonderful ver 1, Wonderful ver 2 Rock with me, Vegetables (demo), Da-Da Taped strings, and so on) And if you wanted to break it down even more, have actual days like Aug 12 - Sept 22.

Id be happy to assist or even set up the table is someone wanted to provide the information!