Table 1. Phenomenology, Treatment, and Frequency of PBT for the four patients.

	Patient 1	Patient 2	Patient 3	Patient 4
Gender	male	male	male	female
Age in years	62	54	48	50
Age when starting to play the violin	8	12	4	13
Age at onset of PBT	46	43	40	43
Tremor duration in years	16	11	8	7
Unilateral right tremor	y	y	y	y
Previous trauma	y	n	n	y
Spreading of tremor	y	Y	y	n
Postural tremor	n	n	n	y
Rest tremor	n	n	n	n
Medication	Prop, Thx, Gabap, Topi, Prim	Prim, Prop	Prim, Prop	Prop
Botulinum toxin	y	n	y	n
Ethanol responsive	y	y	little	n
Family history for tremor	y	y	n	n
Deep brain stimulation	n	n	n	n
Tremor frequency GM/OS	5.9/6.7 Hz	4.7/4.9 Hz	6.5/5.5 Hz	6.1/5.7 Hz

Gabap, Gabapentin; GM, G Major Scale Condition; PBT, Primary Bowing Tremor; OS, Open-string Condition; Prim, Primidone; Prop, Propranolol; Thx, Trihexyphenidyl; Topi, Topiramat.