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Understanding bass registers

Beemer

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My Scandalli has five bass reed sets. I would like to know why when I play a single root note, some bass registers play one note and others play multiple notes. I would have thought that multiple notes would be sounded only when playing chord buttons?
 

Walker

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My Scandalli has five bass reed sets. I would like to know why when I play a single root note, some bass registers play one note and others play multiple notes. I would have thought that multiple notes would be sounded only when playing chord buttons?
If I understand you correctly, I think you have different bass switch (registers) options giving bass notes with single voices or layered double octave voices etc. Seems fairly standard to me. The trick is to balance the treble and bass switches so the bass is neither too dominant nor drowned out by the treble.
 
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debra

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If I understand you correctly, I think you have different bass switch (registers) options giving bass notes with single voices or layered double octave voices etc. Seems fairly standard to me. The trick is to balance the treble and bass switches so the bass is neither too dominant nor drowned out by the treble.
He says "when I play a single root note ... some bass registers ... play multiple notes". So it sounds like some registers enable (higher) voices that have the notes mixed up. That could be caused by a reed block being mounted the wrong way. First thing he should figure out is whether it's the highest notes that are mixed up or lower (middle) range notes. That identifies which block is mounted the wrong way.
He seems to know what chord buttons are...
 

Walker

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I see your perspective there Paul. Perhaps I have misinterpreted the question. I thought @Beemer was just trying to understand the nature of bass registers...
 

Beemer

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If I understand you correctly, I think you have different bass switch (registers) options giving bass notes with single voices or layered double octave voices etc. Seems fairly standard to me. The trick is to balance the treble and bass switches so the bass is neither too dominant nor drowned out by the treble.
You suggested that it was perfectly normal. I never have read about how bass voices are arranged. I'm eager to learn for a technical reason that I will post about later. Meanwhile following your comment about layering I have just played all twenty root buttons again and discovered that every alternate button has layered octaves with the in-between root buttons being single notes. Why might this have been done?
 

Walker

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If you have a switch that is for a single voice bass then all the bass buttons should produce a single voiced note.

Likewise, if you engage a switch that has two voices (double octave, for example) then all bass buttons should play a two voice, double octave note.

There should not be variation within a given voicing.

So, if on a single voice bass switch you are sometimes getting two notes playing on a given bass button, this would not be normal.

*For clarification: I refer to bass notes here rather than the pre-set bass chords on stradella system.
 
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Beemer

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If you have a switch that is for a single voice bass then all the bass buttons should produce a single voiced note.

Likewise, if you engage a switch that has two voices (double octave, for example) then all bass buttons should play a two voice, double octave note.

There should not be variation within a given voicing.

So, if on a single voice bass switch you are sometimes getting two notes playing on a given bass button, this would not be normal.

*For clarification: I refer to bass notes here rather than the pre-set bass chords on stradella system.
So alternating single and octave layered fundamental bass notes on the same register are not normal? I'll check the other bass registers tomorrow as I'm off now to my local Box & Fiddle club.
 

JIM D.

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Hi Beemer:
I appreciate your ??'s on the stradella bass machine.
Now you have 5 sets of reeds in your bass machine. Lets take the bass note "C" for example.
All your 5 sets of reeds have 1 "C" reed but in different octaves. Your register's depending on
model can select a "C" in 1 octave or multiple combinations of 1 or more "C"s in different
reed blocks.

 
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Beemer

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Hi Beemer:
I appreciate your ??'s on the stradella bass machine.
Now you have 5 sets of reeds in your bass machine. Lets take the bass note "C" for example.
All your 5 sets of reeds have 1 "C" reed but in different octaves. Your register's depending on
model can select a "C" in 1 octave or multiple combinations of 1 or more "C"s in different
reed blocks.

Jim,
I will post a recording tomorrow of what I'm hearing. It will be more informative than my description.
Ian
 

Neil Thornock

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I'm no expert but... say you have two sets of reeds engaged for each bass note, but they both break at different points, one at C and one at F, for example. There will be one stretch of notes where they sound at an octave and another stretch of notes where they sound at the unison. Usually (at least on my instrument) there are enough octaves in play that it's heard to hear that actually happening, but maybe that's what you're picking up on.
 

Beemer

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I made an MP3 recording of all fundamental notes in each of the seven registers. On listening back I now realise that registers 2 to 7 all have dual frequencies. In some registers I do have difficulty in hearing more than one frequency, but now realise that my original comment about 'alternating single and dual notes' was false. As a beginner I am not confident about which register to use. The second one has the widest dual frequencies and I'm wondering when that is appropriate to use.
If you are bored and want to endure seven minutes of my recording here is the link:
Ian
 

Neil Thornock

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Well, it sounds like it's in working order. Just focus on making music with it, and experiment with bass registers as you go along. You may find some things work well and others ... not so much.

My instrument only has three bass registers (I wish it had seven!) but even then there is one I hardly ever use.
 

Walker

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I made an MP3 recording of all fundamental notes in each of the seven registers. On listening back I now realise that registers 2 to 7 all have dual frequencies. In some registers I do have difficulty in hearing more than one frequency, but now realise that my original comment about 'alternating single and dual notes' was false. As a beginner I am not confident about which register to use. The second one has the widest dual frequencies and I'm wondering when that is appropriate to use.
If you are bored and want to endure seven minutes of my recording here is the link:
Ian
Glad to hear all's well with your basses. I never thought Scandalli would get that wrong. ;)
 

Dingo40

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I have a very basic (very) old Busilacchio 41/120 adult sized PA in my (small ) accordion collection which I like very much as it has only two treble and no bass couplers, so I don't have to think much about which coupler to use when playing it 😄
Generally, when playing, I give my collection a turn each on successive days.
To blow out the cobwebs, I usually play them all on the master setting (both bass side and treble).
Less can be more!🙂
 

debra

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I made an MP3 recording of all fundamental notes in each of the seven registers. On listening back I now realise that registers 2 to 7 all have dual frequencies. In some registers I do have difficulty in hearing more than one frequency, but now realise that my original comment about 'alternating single and dual notes' was false. As a beginner I am not confident about which register to use. The second one has the widest dual frequencies and I'm wondering when that is appropriate to use.
If you are bored and want to endure seven minutes of my recording here is the link:
Ian
Besides being somewhat out of tune this base side is fine. None of the base notes are playing more than one note. You hear some tremolo because the reeds are out of tune, but they are not the wrong note. When you are a beginner, tuning the bass is certainly too difficult a task to try by yourself. This accordion needs service by a trained repairer.
 

McSqueeze

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I have a very basic (very) old Busilacchio 41/120 adult sized PA in my (small ) accordion collection which I like very much as it has only two treble and no bass couplers, so I don't have to think much about which coupler to use when playing it 😄
Generally, when playing, I give my collection a turn each on successive days.
To blow out the cobwebs, I usually play them all on the master setting (both bass side and treble).
Less can be more!🙂
A good point Dingo40. One of my accordions has no couplers, either bass or treble, so it's simply a matter of pick up and play with no stuffing around. Same when I play any of my diatonics with no couplers.
 

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