======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '172'
                                          'artist'  'Don Cornell'
                                     'text_people'  ''
                                         'release'  'US-Billboard-Charts'
                                           'title'  'Believe In Me'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'vocal', '50s', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '129'
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '124.468'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '54-183 POS 21'
'COMM:ID3v1 Comment:XXX'                            '54-183 POS 21'
'TALB' (Album/Movie/Show title)                     'US-Billboard-Charts'
'TBPM' (BPM (beats per minute))                     '124.468'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         'Believe In Me'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Don Cornell'
'TRCK' (Track number/Position in set)               '129'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'vocal', '50s', 'pop']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+3.27 dB'
'TXXX:replaygain_track_peak'                        '0.252212'

========================== row from database ==========================
                                              'id'  1431614
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/54-183 - Don Cornell - Believe In Me.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  172
                                           'genre'  prerock-vocal
                                        'filesize'  6910156
                                           'mtime'  1621853326
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1954 54 183 prerock vocal
                                      'tag_artist'  Don Cornell
                                     'tag_release'  US-Billboard-Charts
                                       'tag_title'  Believe In Me
                                             'bpm'  124.468
                                    'search_title'  'believe':1 'in':2 'me':3
                                   'search_artist'  'cornell':2 'don':1
                                  'search_release'  'billboard':2 'charts':3 'us':1 'usbillboardcharts':4
                                     'search_rest'  '00oldiepop':5 '183':8 '1954':6 '54':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'vocal':10
                                    'search_combo'  '00oldiepop':14 '183':17 '1954':15 '54':16 'believe':1A 'billboard':7C 'charts':8C 'cornell':5B 'country':13 'don':4B 'exotica':11 'in':2A 'jazz':10 'me':3A 'oldies':12 'prerock':18 'us':6C 'usbillboardcharts':9C 'vocal':19
                                    'tag_tracknum'  129
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'vocal', '50s', 'pop']
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853325.7586682  (2021-05-24 12:48:45)
                             'size'  6910156