======================== unified (from filesystem) ========================
                                         'bitrate'  '58.947'
                                        'duration'  '176'
                                          'artist'  "King Oliver's Croele Jazz Band"
                                     'text_people'  ''
                                         'release'  'Peelenium'
                                           'title'  'New Orleans Stomp'
                                           'quals'  ("['Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'dixieland', 'early jazz', 'big band', 'new orleans']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '95.935'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Peelenium'
'TBPM' (BPM (beats per minute))                     '95.935'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1929'
'TIT2' (Title/songname/content description)         'New Orleans Stomp'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               "King Oliver's Croele Jazz Band"
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'dixieland', 'early jazz', 'big band', 'new orleans']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.86 dB'
'TXXX:replaygain_track_peak'                        '0.585655'

========================== row from database ==========================
                                              'id'  1499951
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1929/04-King Oliver_s Croele Jazz Band __New Orleans Stomp__.mp3
                                         'working'  None
                                         'bitrate'  58
                                    'duration_sec'  176
                                           'genre'  prerock-unsorted
                                        'filesize'  1302400
                                           'mtime'  1620385747
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1929 04 Oliver_s __New Stomp__ prerock unsorted
                                      'tag_artist'  King Oliver's Croele Jazz Band
                                     'tag_release'  Peelenium
                                       'tag_title'  New Orleans Stomp
                                             'bpm'  95.935
                                    'search_title'  'new':1 'orleans':2 'stomp':3
                                   'search_artist'  'band':7 'croele':5 'jazz':6 'king':1 'oliver':2 'olivers':4 's':3
                                  'search_release'  'peelenium':1
                                     'search_rest'  '00oldiepop':5 '1929':6 'country':4 'exotica':2 'jazz':1 'new':9 'oldies':3 'oliver':7 'prerock':11 's':8 'stomp':10 'unsorted':12
                                    'search_combo'  '00oldiepop':16 '1929':17 'band':10B 'country':15 'croele':8B 'exotica':13 'jazz':9B,12 'king':4B 'new':1A,20 'oldies':14 'oliver':5B,18 'olivers':7B 'orleans':2A 'peelenium':11C 'prerock':22 's':6B,19 'stomp':3A,21 'unsorted':23
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'dixieland', 'early jazz', 'big band', 'new orleans']
                                        'tag_date'  1929
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385747.2728972  (2021-05-07 13:09:07)
                             'size'  1302400