It's a mixture of about 30 hits and 20 more obscure (but
GREAT) tunes.
Largely chronological backwards, but not 100%. You have to start with California Girls!
One is instrumental and one is acapella. I believe 50 tunes is great for a double cd, but about 40 is much better for a concert.
Only nrs 2 and 5 are Brian solo records, nr 3 and nrs 23-28 are SMiLE tracks that would sound very interesting with a vocal blend of the surviving Beach Boys members. (Wonderful, Heroes, Good Vibes and even Surf's Up have been performed before by the Beach Boys)
There are a few omissions (such as Barb/I Get Around/ WIBN), but this is
my fantasy list.

01 California Girls

02 California Role

03 In Blue Hawaii (not including wadoo chant)

04 Kokomo

05 Rio Grande

06 Goin´ On

07 My Diane (7,8&9 together?)

08 The Night Was So Young

09 Had To Phone Ya

10 Sail On Sailor

11 Marcella

12´Til I Die

13 Disney Girls (full harmony BB version)
[BRUCE composition]

14 This Whole World

15 Cottonfields

16 Break Away
B R E A K / P A R T 2

17 Do It Again

18 I Can Hear Music [CARL tribute]

19 Little Bird [DENNIS tribute]

20 Busy Doin´ Nothing

21 Aren´t You Glad

22 Darlin´

23 Wonderful (23-26 = SMiLE part 2)

24 Song For Children

25 Child Is The Father Of The Man

26 Surf's Up

27 Heroes & Villains

28 Good Vibrations

29 Pet Sounds [instrumental]

30 God Only Knows

31 Sloop John B

32 The Little Girl I Once Knew

33 Salt Lake City

34 Help Me Rhonda

35 Dance Dance Dance

36 Please Let Me Wonder

37 When I Grow Up

38 Wendy

39 All Summer Long

40 Their Hearts Were Full Of Spring [acapella]

41 The Little Old Lady From Pasedena

42 Johnny B. Goode

43 Fun Fun Fun
E N C O R E

44 409 (starting with motor sounds)

45 Little Deuce Coupe

46 In My Room

47 Catch A Wave

48 Shut Down

49 Surfin´ USA
F I N A L E N C O R E

50 Surfer Girl