======================== unified (from filesystem) ========================
                                         'bitrate'  '185.049'
                                        'duration'  '174'
                                          'artist'  'Marlena Shaw'
                                     'text_people'  ''
                                         'release'  'The Story So Far - Essential Argo/Cadet Grooves'
                                           'title'  'California Soul'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'female vocalists', 'soul', 'funk', '7soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '93.414'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Story So Far - Essential Argo/Cadet Grooves'
'TBPM' (BPM (beats per minute))                     '93.414'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1990'
'TDRL' (Release time)                               '1994'
'TENC' (Encoded by)                                 'Greg'
'TIT2' (Title/songname/content description)         'California Soul'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Marlena Shaw'
'TRCK' (Track number/Position in set)               '04'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 2, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'female vocalists', 'soul', 'funk', '7soul']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.492171'

========================== row from database ==========================
                                              'id'  786033
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The Story So Far - Essential Argo-Cadet Grooves/California Soul - 04 - Marlena Shaw.mp3
                                         'working'  None
                                         'bitrate'  185
                                    'duration_sec'  174
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  4047321
                                           'mtime'  1620536704
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 04 prerock jb jazz unsorted
                                      'tag_artist'  Marlena Shaw
                                     'tag_release'  The Story So Far - Essential Argo/Cadet Grooves
                                       'tag_title'  California Soul
                                             'bpm'  93.414
                                    'search_title'  'california':1 'soul':2
                                   'search_artist'  'marlena':1 'shaw':2
                                  'search_release'  'argo':6 'argocadet':8 'cadet':7 'essential':5 'far':4 'grooves':9 'so':3 'story':2 'the':1
                                     'search_rest'  'country':4 'exotica':2 'jazz':1 'jb':6 'oldies':3 'prerock':5 'unsorted':7
                                    'search_combo'  'argo':10C 'argocadet':12C 'cadet':11C 'california':1A 'country':17 'essential':9C 'exotica':15 'far':8C 'grooves':13C 'jazz':14 'jb':19 'marlena':3B 'oldies':16 'prerock':18 'shaw':4B 'so':7C 'soul':2A 'story':6C 'the':5C 'unsorted':20
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'female vocalists', 'soul', 'funk', '7soul']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536703.658019  (2021-05-09 07:05:03)
                             'size'  4047321