======================== unified (from filesystem) ========================
                                         'bitrate'  '212.818'
                                        'duration'  '373'
                                          'artist'  'Sally Shapiro'
                                     'text_people'  ''
                                         'release'  'Disco Romance'
                                           'title'  'I Know'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['swedish', 'female vocalists', 'italo disco', 'electronic', 'synthpop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '128.740'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Disco Romance'
'TBPM' (BPM (beats per minute))                     '128.740'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'I Know'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sally Shapiro'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['swedish', 'female vocalists', 'italo disco', 'electronic', 'synthpop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.41 dB'
'TXXX:replaygain_track_peak'                        '0.595461'

========================== row from database ==========================
                                              'id'  1289913
                                            'path'  /data/Music/Bulk/00poprockelectronic/Sally Shapiro/02 - I Know.mp3
                                         'working'  None
                                         'bitrate'  212
                                    'duration_sec'  373
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  9948747
                                           'mtime'  1620571946
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 02 electronic we disco or italo
                                      'tag_artist'  Sally Shapiro
                                     'tag_release'  Disco Romance
                                       'tag_title'  I Know
                                             'bpm'  128.74
                                    'search_title'  'i':1 'know':2
                                   'search_artist'  'sally':1 'shapiro':2
                                  'search_release'  'disco':1 'romance':2
                                     'search_rest'  '00poprockelectronic':1 'disco':4 'electronic':2 'italo':6 'or':5 'we':3
                                    'search_combo'  '00poprockelectronic':7 'disco':5C,10 'electronic':8 'i':1A 'italo':12 'know':2A 'or':11 'romance':6C 'sally':3B 'shapiro':4B 'we':9
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['swedish', 'female vocalists', 'italo disco', 'electronic', 'synthpop']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620571946.00343  (2021-05-09 16:52:26)
                             'size'  9948747