Are there both speakers and keyboards?
No, there is a speaker but no keyboards.
    src        edge_attr  dst
0     0  to the right of    7
1     2   to the left of   14
2     2   to the left of   11
3     2               of    8
4     3   to the left of   14
5     3  to the right of    9
6     5  to the right of    7
7     7   to the left of   14
8     7  to the right of    9
9     7   to the left of    0
10    7   to the left of    5
11    9   to the left of    3
12    9   to the left of   13
13    9   to the left of    7
14   11  to the right of    2
15   12   to the left of   14
16   12               of    7
17   13  to the right of    9
18   14  to the right of    7
19   14  to the right of   12
20   14  to the right of    2
21   14  to the right of    3