From Heavy Metal and Natural Language Processing - Part 1 via boingboing
Most Metal Words
Rank Word Metalness
1 burn 3.81
2 cries 3.63
3 veins 3.59
4 eternity 3.56
5 breathe 3.54
6 beast 3.54
7 gonna 3.53
8 demons 3.53
9 ashes 3.51
10 soul 3.40
11 sorrow 3.40
12 sword 3.38
13 goodbye 3.28
14 dreams 3.28
15 gods 3.24
16 pray 3.22
17 reign 3.15
18 tear 3.12
19 flames 3.12
20 scream 3.11
Least Metal Words
Rank Word Metalness
1 particularly -6.47
2 indicated -6.32
3 secretary -6.29
4 committee -6.16
5 university -6.09
6 relatively -6.08
7 noted -5.85
8 approximately -5.75
9 chairman -5.69
10 employees -5.67
11 attorney -5.66
12 membership -5.64
13 administrative -5.61
14 considerable -5.60
15 academic -5.51
16 literary -5.49
17 agencies -5.48
18 measurements -5.47
19 fiscal -5.45
20 residential -5.45
Most Metal Words
Rank Word Metalness
1 burn 3.81
2 cries 3.63
3 veins 3.59
4 eternity 3.56
5 breathe 3.54
6 beast 3.54
7 gonna 3.53
8 demons 3.53
9 ashes 3.51
10 soul 3.40
11 sorrow 3.40
12 sword 3.38
13 goodbye 3.28
14 dreams 3.28
15 gods 3.24
16 pray 3.22
17 reign 3.15
18 tear 3.12
19 flames 3.12
20 scream 3.11
Least Metal Words
Rank Word Metalness
1 particularly -6.47
2 indicated -6.32
3 secretary -6.29
4 committee -6.16
5 university -6.09
6 relatively -6.08
7 noted -5.85
8 approximately -5.75
9 chairman -5.69
10 employees -5.67
11 attorney -5.66
12 membership -5.64
13 administrative -5.61
14 considerable -5.60
15 academic -5.51
16 literary -5.49
17 agencies -5.48
18 measurements -5.47
19 fiscal -5.45
20 residential -5.45