======================== unified (from filesystem) ========================
                                         'bitrate'  '127.991'
                                        'duration'  '391'
                                          'artist'  'Recloose'
                                     'text_people'  ''
                                         'release'  'Playhouse 12"'
                                           'title'  'Cardiology (Isolee Mix)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'house', 'broken beat', 'detroit', 'techno', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '84.245'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Playhouse 12"'
'TBPM' (BPM (beats per minute))                     '84.245'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TIT2' (Title/songname/content description)         'Cardiology (Isolee Mix)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Recloose'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '2'
'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'                                   ['electronica', 'house', 'broken beat', 'detroit', 'techno', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.49 dB'
'TXXX:replaygain_track_peak'                        '0.330312'

========================== row from database ==========================
                                              'id'  1352397
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Cardiology (Isolee Mix).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  391
                                           'genre'  electronic-th-techno
                                        'filesize'  6271784
                                           'mtime'  1620572748
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] electronic th techno
                                      'tag_artist'  Recloose
                                     'tag_release'  Playhouse 12"
                                       'tag_title'  Cardiology (Isolee Mix)
                                             'bpm'  84.245
                                    'search_title'  'cardiology':1 'isolee':2,3 'mix':4,5
                                   'search_artist'  'recloose':1
                                  'search_release'  '12':2 'playhouse':1
                                     'search_rest'  '00poprockelectronic':1 'electronic':7 'files':5,6 'loose':3,4 'techno':9 'th':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 '12':8C 'cardiology':1A 'electronic':15 'files':13,14 'isolee':2A,3A 'loose':11,12 'mix':4A,5A 'playhouse':7C 'recloose':6B 'techno':17 'th':16 'unsorted':10
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  10A
                                           '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-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'house', 'broken beat', 'detroit', 'techno', 'electronic']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620572748.2784994  (2021-05-09 17:05:48)
                             'size'  6271784