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Reading music in a book with searchable pdfs
Dear Mike,

Thanks for your note -- sorry for the delay in responding.  


As for speed of searching, by indexing my searchable pdf library, I was able to search every word on every page of my music in a fraction of a second.  However, the time overhead of maintaining indices, keeping track of consistent naming conventions, etc. made me think that you were truly wise to concentrate on presenting and navigating musical notation in lieu of dealing with issues of cross platform interpretation of images, etc. 

I spent a long time trying to make searchable pdfs work with my sheet music but black spots, tiny print, missing info on scans, and other practical problems made it not worth the time.  I think that most of us don't have an exactly pristine music collection.  I'm now using macros and a good PDF editor (Kofax Power PDF Standard) to make the extraction process produce less pain in less time with more results.


My music library started as normal image based pdfs with one pdf for each individually published song and one pdf for each book of music 

Here's the good news.  

OK, one pdf = one song.  Good!  If that were all I had, then I could search the filename and, poof, the correct chart would appear.

Books were the motivating factor.  I really created this process so that I didn't have to extract lots and lots of individual songs from books.  After converting all my sheet music to searchable pdfs (that took just a few hours while I was sleeping), I indexed every word in my collection using Adobe Acrobat (yes, another nap).  With that index in hand I could do a search in less than a second.  

Now the bad news:  

Unfortunately, I discovered some problems as I kept evaluating how Acrobat could search every word in the sheet music (title, composer, year of publication, lyrics, etc.)  Failures to find words in the sheet music were caused when

1)  there was too much visual noise on the sheet near the title (e.g., dark spots..)
2)  the title was written in an original font that Adobe couldn't recognize.
3)  the year of the publication (at the very bottom of the page) was sliced off when I did the original scan
4)  the year of the publication was so small that it just wasn't legible in even a good quality scan.

Etcetera.  Etcetera.  Etcetera.  

I had to swallow my pride because the fixes were going to take longer than extraction.  Fooey!

I'm using two macros (created by the free Macro Recorder program). I've moved back to a simpler PDF program (Kofax Power PDF Standard -- old name Nuance -- about $130) which isn't as powerful as Acrobat, but it works for me and costs a bunch elss than Acrobat.  Add to that strictly consistent naming conventions and I have an extraction process that is not especially painful or time consuming. 


I would have completed a finished and useful process using searchable pdf's if I had had a pristine collection of music and time to deal with all sorts of other practical and coding problems.  I'm retired now, and if I were still playing jobs, even more problems would have reared their ugly heads.

You were truly wise in staying away from adding a way to avoid extracting pieces from books.  New problems popped up every time I turned a corner. The thought of writing code for searchable pdfs on multiple platforms gives me the willies.  I'm also not sure that a lot of my musical colleagues would  be happy being required to use a proper naming convention -- you know, a perfectly consistent system with no spaces, no apostrophes, no commas, etc.  

Thanks for all your work.

Messages In This Thread
Reading music in a book with searchable pdfs - by DrChocolate - 07-20-2020, 07:34 AM

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