string

agony

angst

anguish

anxiety

anxious

battle

conflict

determine

distress

edge

edgy

fear

foreboding

goal

grief

hard

heavy metal

heroic

march

pain

power

powerful

reach

serious

sorrow

steely

strength

stress

strong

suspense

suspenseful

tense

torment

trouble

uneasy

worry

determination

willpower

resolve

fortitude

grit

courage

stamina

resilience

endurance

electric guitar

electric bass

percussion

snare drum

drum

chorus