obs	lessons	score
1	Piano	2
2	Piano	5
3	Piano	7
4	Piano	-2
5	Piano	2
6	Piano	7
7	Piano	4
8	Piano	1
9	Piano	0
10	Piano	7
11	Piano	3
12	Piano	4
13	Piano	3
14	Piano	4
15	Piano	9
16	Piano	4
17	Piano	5
18	Piano	2
19	Piano	9
20	Piano	6
21	Piano	0
22	Piano	3
23	Piano	6
24	Piano	-1
25	Piano	3
26	Piano	4
27	Piano	6
28	Piano	7
29	Piano	-2
30	Piano	7
31	Piano	-3
32	Piano	3
33	Piano	4
34	Piano	4
35	Singing	1
36	Singing	-1
37	Singing	0
38	Singing	1
39	Singing	-4
40	Singing	0
41	Singing	0
42	Singing	1
43	Singing	0
44	Singing	-1
45	Computer	0
46	Computer	1
47	Computer	1
48	Computer	-3
49	Computer	-2
50	Computer	4
51	Computer	-1
52	Computer	2
53	Computer	4
54	Computer	2
55	Computer	2
56	Computer	2
57	Computer	-3
58	Computer	-3
59	Computer	0
60	Computer	2
61	Computer	0
62	Computer	-1
63	Computer	3
64	Computer	-1
65	None	5
66	None	-1
67	None	7
68	None	0
69	None	4
70	None	0
71	None	2
72	None	1
73	None	-6
74	None	0
75	None	2
76	None	-1
77	None	0
78	None	-2