Mapping metadata with avconv does not work
The way I understand man avconv (version 9.16-6:9.16-0ubuntu0.14.04.1), the following command should convert input.ogg to output.mp3 and carry over metadata:
tagging
Which MP3 tagging tool for Linux?
puddletag is an audio tag editor (primarily created) for GNU/Linux
similar to the Windows program, Mp3tag. Unlike most taggers for
GNU/Linux, it uses a spreadsheet-like layout so that all the tags you
want to edit by hand are visible and easily editable.