when were valves added to brass instruments

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when were valves added to brass instruments	1.67	0.8	2977	86	43
when	0.13	0.2	4762	99	4
were	0.43	0.7	6139	83	4
valves	0.75	0.4	1501	83	6
added	1.18	0.8	3479	47	5
to	1.77	0.5	8254	61	2
brass	1.41	0.8	1486	60	5
instruments	1.08	0.7	3356	36	11

Keyword	CPC	PCC	Volume	Score
when were valves added to brass instruments	0.47	0.6	2254	41
when did brass instruments acquire valves	1.55	0.2	9503	10
when were brass instruments invented	0.78	1	264	2
do all brass instruments have valves	1.82	0.8	3102	38
history of brass instruments	1.43	0.6	3361	90
when was the first brass instrument made	1.89	0.5	7043	9
origin of brass instruments	0.66	0.9	9457	68
how do valves work on brass instruments	1.42	0.7	9460	39
who invented brass instruments	1.03	0.2	7794	13
what was the first brass instrument	1.94	1	8649	71
evolution of brass instruments	2	0.5	4932	80
brass instrument valve wikipedia	1.69	1	3611	88
when was brass first used	1.72	0.8	4610	94
antique brass instruments for sale	1.59	1	3274	85
old brass instruments for sale	1.01	0.8	4795	60
when was brass invented	1.44	0.5	5505	19
antique brass musical instruments	0.61	0.8	1355	4
when was brass first made	1.92	0.8	4862	5