The irealpro player has become an indispensable tool for practicing a tune. Since I play saxophone, the fact that irealpro will give me a full rhythm section to play against makes working on a tune far more possible than it was for me in the past.
I recently got a new phone and went to reinstall the set of songs that I use. They come from a collection called the Jazz 1400. This snuck up slightly in number from the last time I imported, and it must have hit a threshold, because my phone refuses to import it.
The collection is posted as an URL….not a pointer to a resource. The URL itself is the resource. It has all of the music embedded in it. I’m actually familiar with this format as I’ve put a few of my tunes in it. For example. here’s a tune I wrote called “Londontown Rain” in irealpro URL format:
irealbook://Londontown Rain=Young Adam=UpTempo Swing=D=n=[T44*A|D G Bh7 |D |Bh7 E7b9 |F#- |G- C7 |A- D7 |G7 F7 |B-7 |G7 F#7 |D ] |
The Jazz 1400 list is a concatenated set of songs in the ireal format which has been passed through a URL safe encoding. It is over a million characters long. My phone cannot parse an URL this long; apparently the iPhone’s can and those users don’t have this problem.
The first step is to split the file into lines. It took me a little trial and error to figure out the delimiter (I’ve only eve done one song at a time) but it turns out it is easy: === and you don’t even need to urldecode it. So, with this one line, I can split it into a line per song in a single file, and make it legible:
cat irealpro-1400.url | sed 's!irealb://!!; s!===!===\n!g' | while IFS= read -r aline ; do urlencode -d $aline ; done > irealpro-1400.url.split |
The urlencode step is only necessary if you want to read the song titles. On Ubuntu, that binary comes from the package: gridsite-clients
Once it is run, it looks like this:
irealb://9.20 Special=Warren Earl==Medium Swing=C==1r34LbKcu7bB,7B4D9,XQyX,C|QyX6-F|QXy,9D|QyX,6-F|Qy|sC7,4TA*{ ,7G|N1lD9Dl2NZL QyXQyX}G7,7bAs ,7G|QyX,9,XyQ|7A,7KQyX,*BC7,lcKQyX,7DZL lcQKyX,6FZL lcKQyX LZG7[] 6C7B,7C[*AD9,C|QyX,6-F|QyX9,D|QyX,6-F|QyX,XyQ|s] lc,Bb7,A7|lD9,XyQ|G7, C6 Z ==0=0=== 26-2=Coltrane John==Medium Up Swing=F==1r34LbKcu7ZL7bD4F^7 ZL7F 7-CZL7C 7A^ZL7E 7^bDZL7bABb^7 4T[A* 7^AZA7LZD^bDZL7bA 7^F[A]* 7C 7-GZL7G 7-7 E7L 7^bGC[B*]-7 F7FZL7C 7^AZL7E ^7bDZL7bA 7^bBZL^7XyQCZL7C7^bD|LZE-7A|QyX7-bE|QyX7b^BZL7F 7^DZL7A b7XyQ7F 7-BZL7F-7 C7L7C 7^AZL7E 7^DbZL7bA 7^F[A*] ZC-7 G|QyXb^7 Ab7LZDb^7 E7LZA^7 C7LZF^7 Z==0=0=== 52nd Street Theme=Monk Thelonious==Up Tempo Swing=C==1r34LbKcu7L7G 74C A--A CZL7G 7-DZL-7A CZL7G 7-DZL77LZD-4TA*{ZL lcLZCXy7DZL lcKQyX6FZ LlcKQyX,7CB*[}Q,XyQK7G CZ7-A CKcl 7-DZL7-A CZL7G7 -DZL7-A ,CA*[] G7LZQyX7GLZD-7 G7LZC G7LZCXyQZ ==0=0=== 500 Miles High=Corea Chick==Bossa Nova=E-==1r34LbKcu77E|Qy-7XyQL lcKQyX7^bBZLl cKQyX7-GZL lcKZBh7XE44T[QyX7-|A-7XlcKQyX7-FZL lcQKyX7h#FZL lcKQy QLZCQyX9#KQyX7ZB7#9 lcKQyX7-CQ{Y Q yXQyXZ lcKQyXLZAb^L lcKcl }==0=0=== ... |
In order to select a subset of the files I use awk and compare the NR variable to threshold values.
cat irealpro-1400.url.split | awk 'NR<700 {print $0 >> "split.a" } NR>=700 {print $0 >> "split.b"}' |
Since we don’t really need to do the urlencoding/decoding for splitting the file, we can get this whole thing into a single line with no temporary files.
cat irealpro-1400.url | sed 's!irealb://!!; s!===!===\n!g' | awk 'BEGIN{ printf "irealb://" > "irealpro-1400.0-699.url" ; printf "irealb://" > "irealpro-1400.700-1400.url" } NR<700 {printf "%s", $0 >> "irealpro-1400.0-699.url" } NR>=700 {printf "%s", $0 >> "irealpro-1400.700-1400.url"}' |
Here’s what it produces, and what your probably came here for.
I’m going to post this here, but will continue to update the article as I find tweaks to it. I need to make it public so I can hit the URL from my phone and get the tunes imported into irealpro…which doesnot work right now.so…iterations will iterate.
AAAAANNNN my links don’t import, but it turns out that if I dump all of the data from my phone and reimport the 1400 list, it imports successfully. Heh. I’ll leave this up here for its Bashism…and because who knows what will happen in the future.