======================== unified (from filesystem) ========================
                                         'bitrate'  '187.672'
                                        'duration'  '653'
                                          'artist'  'Guru Freakout'
                                     'text_people'  ''
                                         'release'  'psychedelic space rock'
                                           'title'  'Bonus: Elektrolurch-Mutation (Live at the Salvage Vanguard)'
                                           'quals'  ("['Q-HAP-3', 'Q-SYN-2', 'Q-UNU-1', 'Q-BUSY-3', 'Q-GRIT-2', 'q-bass-4', "
 "'Q-JZFKS-1', 'Q-OLDST-2', 'q-drums-2', 'q-other-4', 'q-piano-1', "
 "'q-vocals-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2', 'Q-LOCALNESS-1', 'Q-PLAY-3', "
 "'Q-CHART-2']")
                                      'lastfmtags'  "['space rock', 'krautrock']"
                                     'discogstags'  "['krautrock', 'space rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic-space;set-pl-progspace'
                                             'bpm'  '127.6'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:cover.jpg'                                    type PictureType.COVER_FRONT (Cover (front)) b'cover.jpg'
                                     
'COMM::eng'                                         'Downloaded with Athame 0.4.8.0.'
'TALB' (Album/Movie/Show title)                     'psychedelic space rock'
'TBPM' (BPM (beats per minute))                     '127.6'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic-space', 'set-pl-progspace', 'set-pl-progspace']
'TIT2' (Title/songname/content description)         'Bonus: Elektrolurch-Mutation (Live at the Salvage Vanguard)'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Guru Freakout'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Encoder'                                      'Lame 3.98.4'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['krautrock', 'space rock', 'rock']
'TXXX:lastfmtags'                                   ['space rock', 'krautrock']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.23 dB'
'TXXX:replaygain_track_peak'                        '0.525940'

========================== row from database ==========================
                                              'id'  1485585
                                            'path'  /data/Music/Bulk/00poprockelectronic/psychedelic space rock/Bonus- Elektrolurch-Mutation (Live at the Salvage Vanguard) - Guru Freakout.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  653
                                           'genre'  rock-cppex-psychedelic-space;set-pl-progspace
                                        'filesize'  15888571
                                           'mtime'  1620736335
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic cppex space;set pl progspace
                                      'tag_artist'  Guru Freakout
                                     'tag_release'  psychedelic space rock
                                       'tag_title'  Bonus: Elektrolurch-Mutation (Live at the Salvage Vanguard)
                                             'bpm'  127.6
                                    'search_title'  'at':8 'bonus':1,2 'elektrolurch':3 'elektrolurchmutation':5 'live':6,7 'mutation':4 'salvage':10 'the':9 'vanguard':11,12
                                   'search_artist'  'freakout':2 'guru':1
                                  'search_release'  'psychedelic':1 'rock':3 'space':2
                                     'search_rest'  '00poprockelectronic':1 'cppex':2 'pl':7 'progspace':8 'set':4,6 'space':3,5
                                    'search_combo'  '00poprockelectronic':18 'at':8A 'bonus':1A,2A 'cppex':19 'elektrolurch':3A 'elektrolurchmutation':5A 'freakout':14B 'guru':13B 'live':6A,7A 'mutation':4A 'pl':24 'progspace':25 'psychedelic':15C 'rock':17C 'salvage':10A 'set':21,23 'space':16C,20,22 'the':9A 'vanguard':11A,12A
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-2', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['space rock', 'krautrock']
                                        'tag_date'  
                                     'discogstags'  ['krautrock', 'space rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620736334.9663396  (2021-05-11 14:32:14)
                             'size'  15888571