Linux - grep function

Question

i am currently making a script that searches all .mp3 files by idTags. I am using id3tools. Main problem with my code is that it will only work when the file path will only contain 5 of "/". I have to make it work 100% of the time, no matter what the file path is. My code:

#!/bin/bash
find /home -name \*.mp3 > songs.txt 
while read line ; do
    echo "$line" > new.txt

    filePath=`cut -d "/" -f 1,2,3,4 new.txt`
    name=` cut -d "/" -f 5 new.txt` 

    cd "$filePath"
    id3tool "$name" > tmp.txt

    if grep -q "2020" tmp.txt
    then
        echo $name
fi
    cd
done < songs.txt

for example file path that will work: /home/bednar/Pobrane/fileName.mp3 and on the screen will ocure fileName.mp3