======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '154'
                                          'artist'  'Ella Mae Morse'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "No love, no nothin'"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz vocal', 'blues', 'jazz', 'female vocalists', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '178'
                                      'tracktotal'  ''
                                            'date'  '1944'
                                        'comments'  ''
                                           'genre'  'prerock-jb-unsorted'
                                             'bpm'  '106.085'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '106.085'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-unsorted'
'TDRC' (Recording time)                             '1944'
'TIT2' (Title/songname/content description)         "No love, no nothin'"
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ella Mae Morse'
'TRCK' (Track number/Position in set)               '178'
'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 vocal', 'blues', 'jazz', 'female vocalists', '50s']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.35 dB'
'TXXX:replaygain_track_peak'                        '0.334521'

========================== row from database ==========================
                                              'id'  1504485
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/178 No love, no nothin_ - Ella Mae Morse (22-01-1944).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  154
                                           'genre'  prerock-jb-unsorted
                                        'filesize'  2478103
                                           'mtime'  1620527440
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 178 nothin_ (22 01 1944) prerock jb unsorted
                                      'tag_artist'  Ella Mae Morse
                                     'tag_release'  None
                                       'tag_title'  No love, no nothin'
                                             'bpm'  106.085
                                    'search_title'  'love':2,3 'no':1 'nothin':4,5
                                   'search_artist'  'ella':1 'mae':2 'morse':3
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '178':7 '1943':6 '1944':11,12 '22':9,10 'country':4 'exotica':2 'jazz':1 'jb':14 'nothin':8 'oldies':3 'prerock':13 'unsorted':15
                                    'search_combo'  '00oldiepop':13 '178':15 '1943':14 '1944':19,20 '22':17,18 'country':12 'ella':6B 'exotica':10 'jazz':9 'jb':22 'love':2A,3A 'mae':7B 'morse':8B 'no':1A 'nothin':4A,5A,16 'oldies':11 'prerock':21 'unsorted':23
                                    'tag_tracknum'  178
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['jazz vocal', 'blues', 'jazz', 'female vocalists', '50s']
                                        'tag_date'  1944
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527439.6722708  (2021-05-09 04:30:39)
                             'size'  2478103