Is there either a piano or a drum that is not white?
No, there is a piano but it is white.
    src        edge_attr  dst
0     0  to the right of   13
1     0  to the right of    5
2     0   to the left of   17
3     0  to the right of   18
4     1   to the left of   13
5     1   to the left of   10
6     2  to the right of    6
7     2  to the right of   12
8     2  to the right of   14
9     3  to the right of    6
10    3               on    2
11    4   to the left of   10
12    4               on    5
13    5   to the left of   16
14    5   to the left of    0
15    5   to the left of    9
16    5   to the left of   10
17    5   to the left of   18
18    6   to the left of    3
19    6  to the right of    8
20    6   to the left of    2
21    7               on    2
22    7  to the right of   14
23    8   to the left of    6
24    9  to the right of   16
25    9  to the right of   18
26    9  to the right of    5
27    9   to the left of   17
28   10  to the right of    5
29   10  to the right of    4
30   10  to the right of   13
31   10  to the right of    1
32   11  to the right of   14
33   11          full of   15
34   12   to the left of    2
35   13   to the left of    0
36   13   to the left of   18
37   13  to the right of    1
38   13   to the left of   10
39   14   to the left of    2
40   14   to the left of   11
41   14   to the left of   15
42   14   to the left of    7
43   15  to the right of   14
44   16   to the left of    9
45   16  to the right of    5
46   17  to the right of    0
47   17  to the right of    9
48   18  to the right of    5
49   18  to the right of   13
50   18   to the left of    9
51   18   to the left of    0