======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '276'
                                          'artist'  "Janet's Novelty JB"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Good morning blues'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-1', 'q-drums-1', 'q-other-3', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle'
                                             'bpm'  '145.163'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.163'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-dixiestyle'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Good morning blues'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               "Janet's Novelty JB"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'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-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.65 dB'
'TXXX:replaygain_track_peak'                        '0.362273'

========================== row from database ==========================
                                              'id'  1529526
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Dixieland/Janet_s Novelty JB/Good morning blues.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  276
                                           'genre'  prerock-jb-jazz-o-dixiestyle
                                        'filesize'  5537376
                                           'mtime'  1620528483
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Dixieland Janet_s prerock jb jazz dixiestyle
                                      'tag_artist'  Janet's Novelty JB
                                     'tag_release'  None
                                       'tag_title'  Good morning blues
                                             'bpm'  145.163
                                    'search_title'  'blues':3 'good':1 'morning':2
                                   'search_artist'  'janet':1 'janets':3 'jb':5 'novelty':4 's':2
                                  'search_release'  
                                     'search_rest'  'country':4 'dixieland':5 'dixiestyle':10 'exotica':2 'janet':6 'jazz':1 'jb':9 'oldies':3 'prerock':8 's':7
                                    'search_combo'  'blues':3A 'country':12 'dixieland':13 'dixiestyle':18 'exotica':10 'good':1A 'janet':4B,14 'janets':6B 'jazz':9 'jb':8B,17 'morning':2A 'novelty':7B 'oldies':11 'prerock':16 's':5B,15
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', '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'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528483.3689346  (2021-05-09 04:48:03)
                             'size'  5537376