Author Topic: Weight of LHS in BCC# boxes  (Read 209 times)

Euanbrown

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Weight of LHS in BCC# boxes
« on: July 05, 2018, 02:44:11 PM »
Hi,
I know  there has been some discussion of the relative weights of  boxes.  But this is  total weight.  The main physics problem (moving the air efficiently against the weight of the box) pertains to the LHS or Bass end movement.  In a sense the weight of the treble end is irrelevant (as if properly strapped it does not move).   Anyone looked at relative weights of base  ends? Any idea about this? 

thanks

Euan

Andy

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Re: Weight of LHS in BCC# boxes
« Reply #1 on: July 06, 2018, 06:51:28 PM »
Problem with BCC# is that most of us want more, more treble buttons, bigger stradella, more voices, more registers. This creeps up on folk. Doubt if many folk playing a 31/12 two voice Trichord decide they are so limited that they immediately need to jump to a 46/120 four voice Shand but on the bass side particularly the logic seems to go:
If you have a 12 stradella then its only a few more rods and buttons to have 24 with very little difference in weight
If you have a 24 stradella then its only a few more rods and buttons to have 48 with very little difference in weight
If you have a 48 stradella then its only a few more rods and buttons to have 60 with very little difference in weight
If you have a 60 stradella then its only a few more rods and buttons to have 72 with very little difference in weight
If you have a 72 stradella then its only a few more rods and buttons to have 96 with very little difference in weight
If you have a 96 stradella then its only a few more rods and buttons to have 120 with very little difference in weight

All the above are true but the end result is a bit heavy for many.
I play a Gaelic IVS 37/96, while it is not too heavy it does occur to me that the 72 bass on my son's Concerto II piano accordion feels a lot lighter and for me would be sufficient 99% of the time. I believe that a well designed 60 bass (12 x 5) stradella could be something of a sweet spot in the weight versus range compromise but reserve the right to change my mind on that one.

Euanbrown

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Re: Weight of LHS in BCC# boxes
« Reply #2 on: July 08, 2018, 04:27:40 PM »
Ha! I know that progression Andy! Ive gone, 16 diatonic base, 48 Stradella, and now 80 Stradella!
 

Fishfeathersmacteeth

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Re: Weight of LHS in BCC# boxes
« Reply #3 on: July 11, 2018, 10:20:17 AM »
...I'm at the 48 Stradella Bass stage....

..after playing the three row 48 Bass, the 2 Row 2 voice B/C fairly seems to play itself...sometimes if I've been playing a lot of B/C I need a few minutes to adjust myself to not throwing the left hand about as much when I pick up the "big" box... :-)

..occasionally I practise the 3 row with the bottom bellows strap still clipped in.  I tell myself I'm practising my bellows control...  ;D

...but aye, it would seem logical that the lighter the Bass end the easier to control..or it all ends up being a bit like a musical Bullworker..(anyone else old enough to remember them..?  ;D
...all the way from Luthermuir..

Euanbrown

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Re: Weight of LHS in BCC# boxes
« Reply #4 on: July 11, 2018, 03:48:51 PM »
Yes I remember the bullworker!   In fact I also remember a fellow during the first Edinburgh Folk Festival  (who shall remain nameless),  who had clearly worked-out with one,   ripping a perfectly good D/G melodeon apart in his enthusiasm! 

I was just thinking that the full weight of boxes is not as important as the weight of the bass end.

Fishfeathersmacteeth

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Re: Weight of LHS in BCC# boxes
« Reply #5 on: July 17, 2018, 10:31:34 AM »
...yeah, the heavier the Bass end, the more important to know one's way about the keyboard.  People like me who essentially play it as a 2 row instrument with just the odd stab at the third row to get a note in the right direction really appreciate light Bass ends...  ;D
...all the way from Luthermuir..