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use keyboard where there is no power supply?
#2582715 10/29/16 06:11 PM
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I have an upcoming gig where there is no power supply. I considered renting a battery-powered keyboard, but checked out a few & they were terrible. Any suggestions?

Re: use keyboard where there is no power supply?
Heliotrope #2582725 10/29/16 07:03 PM
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They make battery packs and generators and invertors for the field. I see marching bands use them when they have keyboards in the pit.

http://www.lonestarpercussion.com/Marching/Power-Solutions/

Also, here's a great article on street gigging,
http://www.streetmusician.co.uk/buskingpower/

Re: use keyboard where there is no power supply?
ElmerJFudd #2582745 10/29/16 08:32 PM
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Thanks, Elmer. You've suggested several possible solutions; I'll have to study them a bit to see which would best fit my situation.

Re: use keyboard where there is no power supply?
Heliotrope #2582810 10/30/16 02:58 AM
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We just had a _long_ thread about battery-powered keyboards, speakers, etc. You might find something there:

http://www.pianoworld.com/forum/ubbthreads.php/topics/2582356/Best_High_End_Portable.html




. Charles
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PX-350 / microKorg XL+ / Pianoteq / Lounge Lizard / EV ZXA1 speaker
Re: use keyboard where there is no power supply?
Heliotrope #2582826 10/30/16 06:13 AM
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Will you be paying out of your pocket for the rental of a generator? I would first determine whose responsibility it is to supply power and who is going to pay for it.

I learned a very long time ago that you can encounter all kinds of problems on outside jobs _especially_ with very long runs of power cable; the voltage drops with very long runs.

Some equipment really want to 'see' something very close to 115 VAC (or 230 VAC).

Is the job an outside wedding ceremony where you only have to play for 20 minutes or so or is it a four hour job?

There's enough information online regarding rentals of generators for this kind of situation.

For me, I wouldn't think it would be my responsibility to provide power for a job where there is no power (unless I were to be reimbursed for whatever I rent). That would have to be sorted first.



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Re: use keyboard where there is no power supply?
Dave Horne #2582880 10/30/16 11:54 AM
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I thank Charles Cohen and Dave Horne for their suggestions. I have a lot to go through, now, to make the right choice. For those who may be curious, the keyboard will be used at a cemetery, at the grave of Scott Joplin. His widow reported that he had asked her to have Maple Leaf Rag played at his funeral, but she did not think ragtime at funeral would be appropriate. In 2017 we will have an event to commemorate the centennial of his death; that's when we will remedy Lottie Joplin's lapse with a keyboard rendition of his greatest rag.

Re: use keyboard where there is no power supply?
Heliotrope #2582885 10/30/16 12:17 PM
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I first played the Maple Leaf Rag back in 1976 at a concert celebrating the 200th anniversary of the US. I was 26 at the time and was nervous even though I had prepared that piece for months. (I didn't have a choice, I was in the military and I was the pianist. I think I was given three months advance notice of this.)

Since then I have played through all his piano works 86 times. I'll start at the beginning or ending of the Collected Piano Works book and work my way through.

I would think there might be outlets at the cemetery. Have you contacted the people who manage the cemetery?

If you're only playing one piece I would think a battery setup would work. I'd check out caravan\RV dealers as they have experience in these situations.

Good luck with your performance. Are you taking all endings or just second endings?


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Re: use keyboard where there is no power supply?
Heliotrope #2582892 10/30/16 01:07 PM
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How many people do you expect to be there?

Powering a keyboard is one thing; powering a keyboard and a PA system can be seriously complicated.



. Charles
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Re: use keyboard where there is no power supply?
Dave Horne #2582894 10/30/16 01:11 PM
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I work closely with the cemetery administration; we've been having concerts there for the past dozen years. A major part of next years event will be the Paragon Ragtime Orchestra, but that's not at the gravesite. After the main program, we always meet at the gravesite, sometimes with a small performance, such as having a barbershop group sing "We will rest awhile," from Joplin's opera "Treemonisha."

Re: use keyboard where there is no power supply?
Heliotrope #2582936 10/30/16 04:55 PM
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With all the good advice here, I also wouldn't use a "keyboard" but a digital piano to play ragtime. If this is going to be used for more than just one event (and it sounds like it), then the Casio PX-5S can run on batteries, and you'd need a PA system or at least an amp of some kind.

I'd almost be tempted to wheel an acoustic out there if there's one close by. Does the cemetery have one on-site?


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Re: use keyboard where there is no power supply?
Dave Horne #2582950 10/30/16 05:34 PM
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Outlets at a cemetery? Nope.
Originally Posted by Dave Horne
I would think there might be outlets at the cemetery. Have you contacted the people who manage the cemetery?
I don't think the residents wish to keep the lights on at night. They don't watch much TV either. smile

Re: use keyboard where there is no power supply?
Morodiene #2582954 10/30/16 06:28 PM
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The cemetery has a baby grand in the chapel. It's difficult to move, and outdoor events require that it be amplified (same problem with no nearby electrical outlets), making its sound worse than what one gets from a digital

Re: use keyboard where there is no power supply?
Heliotrope #2582965 10/30/16 07:31 PM
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The cemetery probably has grave-side services, and it wouldn't surprise me to learn that an "up to date" cemetery would have some outlets as a way to plug in a sound system in various places. Or, maybe not. But it's worth asking.

There is a large battery in any car, so I've done gigs where I run a cable from the car battery to a power inverter and had enough juice to run a standard digital piano off of that. If it were me, I'd go with a nice digital like a Kawai ES8 with relatively powerful internal speakers so that you get speakers and don't need to carry any more gear than necessary. You want to get a decent power inverter, since the shape of the wave generated matters to some electronic equipment.

Some recent cars (the Toyota Matrix comes to mind) even have standard wall power outlets that are powered by the battery. I imagine RVs do too.

This depends on being able to park within around 50 feet of the performance site, of course (which would be nice for transporting the piano as well). Sound fidelity and power may not be of paramount importance, since everyone there knows the Maple Leaf Rag. But do choose a keyboard that you can play well on; I know that piece and I'd hate to attempt it on an under-weighted keyboard!


Rodney Sauer
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Re: use keyboard where there is no power supply?
MacMacMac #2582971 10/30/16 07:58 PM
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Originally Posted by MacMacMac
Outlets at a cemetery? Nope.
Originally Posted by Dave Horne
I would think there might be outlets at the cemetery. Have you contacted the people who manage the cemetery?
I don't think the residents wish to keep the lights on at night. They don't watch much TV either. smile


I would think there are lamp posts in the cemetery. There might just be power lines running through the cemetery.

I'm taking my smart phone with me when I die, I trust I will be able to charge my phone in that event.


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Re: use keyboard where there is no power supply?
ColoRodney #2582978 10/30/16 08:12 PM
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The cemetery has no power outlets anywhere near the grave, but a power inverter working from a car would certainly work, if I understand what I just read about them. (I had never used one & was not familiar with the term.) The grave is within 10-15 ft of the road. If I can plug into my car's cigarette lighter and get proper voltage and wattage, problem's solved. Many years ago, on the anniversary of Joplin's death, I drove my car near the grave and played a recording of Maple Leaf. It attracted a bit of attention from a groundskeeper. He said it's a good tune & should become a hit.

Re: use keyboard where there is no power supply?
Heliotrope #2583024 10/31/16 04:31 AM
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An ES8 will run on a portable battery, Rav Power RP-PB14. It runs about $100. Painomanchuck has a video on it.

https://m.youtube.com/watch?v=H7LB8icbI3o



Kawai ES8, 1910 Elburn Upright, Ivory II, Receptor

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