flac2ogg.py path/to/music mnt/sdcard This will copy the entire tree under music and recode the supported formats to an ogg file with quality 8 using as many concurrent processes as you have cores
flac2ogg.py /path/to/album This will create a new directory which is the basename of the first argument, in this case album
flac2ogg.py -o “-a Test” -q 10 -t 4 path/to/music mnt/sdcard This will recode all supported formats, set the artist to test, the quality to 10 and use 4 concurrent processes