======================== unified (from filesystem) ========================
                                         'bitrate'  '216.678'
                                        'duration'  '275'
                                          'artist'  'Starsailor'
                                     'text_people'  ''
                                         'release'  'Now Dance 2005'
                                           'title'  'four to the floor'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-3']")
                                      'lastfmtags'  "['indie', 'alternative', 'britpop', 'british', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '123.032'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Now Dance 2005'
'TBPM' (BPM (beats per minute))                     '123.032'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'four to the floor'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Starsailor'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'britpop', 'british', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.452872'

========================== row from database ==========================
                                              'id'  1282933
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/top, dance, club, best of, etc/starsailor_-_four_to_the_floor.mp3
                                         'working'  None
                                         'bitrate'  216
                                    'duration_sec'  275
                                           'genre'  electronic-unsorted
                                        'filesize'  7456373
                                           'mtime'  1620573258
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted top, dance, club, best of, etc starsailor_ _four_to_the_floor electronic unsorted
                                      'tag_artist'  Starsailor
                                     'tag_release'  Now Dance 2005
                                       'tag_title'  four to the floor
                                             'bpm'  123.032
                                    'search_title'  'floor':4 'four':1 'the':3 'to':2
                                   'search_artist'  'starsailor':1
                                  'search_release'  '2005':3 'dance':2 'now':1
                                     'search_rest'  '00poprockelectronic':1 'best':9 'club':7,8 'dance':5,6 'electronic':18 'etc':12 'floor':17 'four':14 'of':10,11 'starsailor':13 'the':16 'to':15 'top':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 '2005':8C 'best':17 'club':15,16 'dance':7C,13,14 'electronic':26 'etc':20 'floor':4A,25 'four':1A,22 'now':6C 'of':18,19 'starsailor':5B,21 'the':3A,24 'to':2A,23 'top':11,12 'unsorted':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'britpop', 'british', 'rock']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573257.8612542  (2021-05-09 17:14:17)
                             'size'  7456373