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#1807264 - 12/16/11 05:29 PM Reliable Midi files  
Joined: Sep 2011
Posts: 6
audi321 Offline
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audi321  Offline
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uk
Hi all, I have a Roland HPI-7F which has the ability to convert midi files and display them on the screen as notation.

However, I am really struggling to find a reliable Midi download site which the Roland can convert accurately, and shows the score correctly.

Does anyone have any recommendations?

Thanks in advance!

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#1807301 - 12/16/11 06:37 PM Re: Reliable Midi files [Re: audi321]  
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ChrisA Offline
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ChrisA  Offline
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Redondo Beach, California
Originally Posted by audi321
Hi all, I have a Roland HPI-7F which has the ability to convert midi files and display them on the screen as notation.

However, I am really struggling to find a reliable Midi download site which the Roland can convert accurately, and shows the score correctly.

Does anyone have any recommendations?

Thanks in advance!


Even in theory this never can be done perfectly. The problem is that there is always more than one way to notate a MIDI file. Examples, A human engraver knows when to bar a pair of 1/8th notes, knows a tie from a dotted note and so on. He'd also know if a note is played with left of right hand. There are a hundred things like this.

Inside the MIDI file all we have is the times in what are basically "ticks" that say when the key went down and when it went up. What's worse is that MIDI files contain a performance and the pianist may not have played in perfect time then we get odd things like dotted 1/16 notes where you'd want an 8th

And don't even begin to think about triplets and MIDI. MIDI records the "as played" not the "as written" music and triplets are a mis-match.

So there is not enough information in a MIDI file to re-construct the score perfectly. There are other file formats, "Music XML" is one for notation.

Some computer software is pretty good at guessing about MIDI and on the computer you can hand correct any mistakes and move things around until it looks good.

Direct answer - try virtual sheet music dot com.
They provide for each download the MIDI file and the PDF score and an MP3 file. Then you don't need to translate the MIDI files as you already have the PDF score. The scores look nice but the MP3s are robot-like transcriptions, maybe what you want for learning because they exactly follow the score

Also if you happen to have an Apple computer then use Garage Band to translate MIDI to a score but all of the problems above apply but at least you can fix them. On Windows you can buy software to do about the same

Last edited by ChrisA; 12/16/11 06:42 PM.
#1807626 - 12/17/11 12:59 PM Re: Reliable Midi files [Re: audi321]  
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audi321 Offline
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audi321  Offline
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uk
Ah right, thanks for that then.

So does anyone know if there is a way to download scores from anywhere to display on the piano screen?

#1807634 - 12/17/11 01:11 PM Re: Reliable Midi files [Re: audi321]  
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Glenn NK Offline
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Glenn NK  Offline
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Victoria BC
I can DL MIDI scores and PRINT them, but haven't tried displaying them on my Roland - probably because the screen on my KR7 is too small and because I'm more comfortable with a paper score.

I use Powertracks Pro Audio.

Glenn

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#1807838 - 12/17/11 09:54 PM Re: Reliable Midi files [Re: audi321]  
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ChrisA Offline
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ChrisA  Offline
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What finds of files can the Roland display? Can it display Music XML or PDF?

#1807852 - 12/17/11 11:13 PM Re: Reliable Midi files [Re: ChrisA]  
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Glenn NK Offline
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Glenn NK  Offline
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Victoria BC
Originally Posted by ChrisA
What finds of files can the Roland display? Can it display Music XML or PDF?


After I've played and recorded a MIDI file, I can have the DP play it back and I can watch the music scroll on the screen.

No big deal believe me. I don't bother with it.

If I want music to read as I play, I prefer the full sized score.

That's my personal opinion - I think the screen is a bit of a gimmick.

Glenn

#1808527 - 12/19/11 10:00 AM Re: Reliable Midi files [Re: Glenn NK]  
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audi321 Offline
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audi321  Offline
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uk
The screen (for me) is amazing! The score is shown along with the keys you press and therefore it assists in playing any piece of music.

I am looking for the ability to download the midi onto a memory stick. Put it in the Roland, and it to convert the midi into a score and then play it back accurately.

#1808539 - 12/19/11 10:33 AM Re: Reliable Midi files [Re: audi321]  
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Brent H Offline
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Brent H  Offline
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I think "score" is too generous a term. The MIDI file contains a sequence of notes, that is to say the pitch and duration of a series of notes. For a reasonably complex piece of music any automated display of MIDI notes on a 5-line staff will only loosely resemble a real musical score. Of course for trivial melodies or such it may be pretty much like "real" notation since there isn't much to it to begin with.


Current Life+Music Philosophy: Less Thinking, More Foot Tapping

Ars Longa, Vita Brevis
#1808714 - 12/19/11 04:05 PM Re: Reliable Midi files [Re: audi321]  
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ChrisA Offline
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ChrisA  Offline
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Redondo Beach, California
Originally Posted by audi321

I am looking for the ability to download the midi onto a memory stick. Put it in the Roland, and it to convert the midi into a score and then play it back accurately.


Simply playing back a MIDI file does not require any conversion. The MIDI file is almost exactly like an old player piano paper roll. The information contained in each is nearly identical. The playback will be _exact_. But what everyone is saying here is that converting MIDI to notation is never perfect.

If you get a MIDI cable for your computer you can avoid using the memory stick. Also doing the MIDI to score conversion on the computer can be much better.

Last edited by ChrisA; 12/19/11 04:17 PM.

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