SIGHT-SINGING ANSWER: “America” from “West Side Story” (Leonard Bernstein)

Across
1- An arms treaty SALT
5- Oohs and ____ AAHS
9- Secretary Clinton has a great one SEAL
13- Coconut-husk fiber COIR
14- Permeate IMBUE
15- ____ libre CUBA
16- ___ Domini ANNO
17- Make a political tour STUMP
18- French field ORLY
19- Kind of case MENTAL
21- Tit for ___ TAT
22- Percussion instruments, coll. TOYS
23- Ladies of Sp. SRAS
25- Pianist Peter NERO
27- Disease that took Susan Sontag and Ed 
Bradley LEUKEMIA
31- Beefsteak, e. g. TOMATO
35- “____ the Lonely” ONLY
36- Ingrid’s “Casablanca” role ILSA
38- St. John’s bread CAROB
39- Giant Mel OTT
40- Overhead COSTS
42- Pedal digit TOE
43- Letter line SERIF
46- Ward of “The Fugitive” SELA
47- Unctuous OILY
48- Rubber ERASER
50- Quality of repeats SAMENESS
52- Quantity of paper REAM
54- Teed off SORE
55- Spanish table MESA
58- ___ kwon do TAE
60- Pinstriper YANKEE
64- Peter Fonda title role ULEE
65- Shade TINGE
67- Oklahoma city ENID
68- Sock stuffer for bad kids COAL
69- “The Song is _____” ENDED
70- “Que ____ ….” SERA
71- Soprano Te Kanawa KIRI
72- Musical symbol REST
73- Appear SEEM

Down 
1- Ponzi scheme, e. g. SCAM
2- Tops AONE
3- Scottish waterfall LINN
4- Russian revolutionary TROTSKY
5- What is taken from an ATM? AMT
6- Adjoin ABUT
7- “The _____ Comedy” HUMAN
8- Jazz group, maybe SEPTET
9- Blind spot SCOTOMA
10- Monetary unit of Greece EURO
11- Member of a notorious Captain’s family? ABLY
12- Bard music LAYS
14- Mohammedan ISLAMIC
20- “All the Things You ___” ARE
24- Missile stashes SILOS
26- Mythical bird ROC
27- A time feeling LOOSE
28- Computer command ENTER
29- Michelob brand ULTRA
30- Boobs ASSES
32- Husband of Lana, Ava, and 6 others ARTIE
33- Workman’s deductable items TOOLS
34- Carries out altar promises? OBEYS
37- Country album? ATLAS
41- Siberian dog SAMOYED
44- Clarinetist Anat Cohen, e. g. ISRAELI
45- Fi-fo-fum preceder FEE
47- Unity with God ONENESS
49- Hunting cat RATTER
51- Baseball stat ERA
53- Neighbor of Quebec MAINE
55- What politician may rake MUCK
56- “The Time Machine” race ELOI
57- Tuba player Walter SEAR
59- Partner of odds ENDS
61- Cypress growth KNEE
62- Home of Celtic music EIRE
63- Ball cheese EDAM
66- Jewish divorce document GET