======================== unified (from filesystem) ========================
                                         'bitrate'  '192.183'
                                        'duration'  '293'
                                          'artist'  'Anneli Drecker'
                                     'text_people'  ''
                                         'release'  'Frolic'
                                           'title'  'Strange Little Bird'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['female vocalists', 'alternative', 'electronic', 'dream pop', 'norwegian']"
                                     'discogstags'  "['pop', 'vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-shoegaze or dreampop'
                                             'bpm'  '108.821'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Frolic'
'TBPM' (BPM (beats per minute))                     '108.821'
'TCON' (Content type, a.k.a. Genre)                 'electronic-shoegaze or dreampop'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Strange Little Bird'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Anneli Drecker'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['pop', 'vocal']
'TXXX:lastfmtags'                                   ['female vocalists', 'alternative', 'electronic', 'dream pop', 'norwegian']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.436244'

========================== row from database ==========================
                                              'id'  1352511
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Anneli Drecker/Anneli Drecker - Frolic/Anneli Drecker - Frolic/Frolic-05-Strange Little Bird.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  293
                                           'genre'  electronic-shoegaze or dreampop
                                        'filesize'  7068683
                                           'mtime'  1636909964
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 05 electronic shoegaze or dreampop
                                      'tag_artist'  Anneli Drecker
                                     'tag_release'  Frolic
                                       'tag_title'  Strange Little Bird
                                             'bpm'  108.821
                                    'search_title'  'bird':3 'little':2 'strange':1
                                   'search_artist'  'anneli':1 'drecker':2
                                  'search_release'  'frolic':1
                                     'search_rest'  '00poprockelectronic':1 'dreampop':7 'electronic':4 'indierock':3 'or':6 'poprock':2 'shoegaze':5
                                    'search_combo'  '00poprockelectronic':7 'anneli':4B 'bird':3A 'dreampop':13 'drecker':5B 'electronic':10 'frolic':6C 'indierock':9 'little':2A 'or':12 'poprock':8 'shoegaze':11 'strange':1A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['female vocalists', 'alternative', 'electronic', 'dream pop', 'norwegian']
                                        'tag_date'  2005
                                     'discogstags'  ['pop', 'vocal']

============================== file details ==============================
                                           'mtime'  1636909964.3352165  (2021-11-14 18:12:44)
                             'size'  7068683