======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '225'
                                          'artist'  "The Hi-Lo's"
                                     'text_people'  ''
                                         'release'  'Now Hear This'
                                           'title'  'Laura'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', '50s', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '135.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Now Hear This'
'TBPM' (BPM (beats per minute))                     '135.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Laura'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               "The Hi-Lo's"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', '50s', '60s']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+0.73 dB'
'TXXX:replaygain_track_peak'                        '0.542945'

========================== row from database ==========================
                                              'id'  1500460
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - space age pop & mid century domestics (jingles & themes)/(1957) the hi-lo_s - laura.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  225
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  3609017
                                           'mtime'  1620539229
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va space age pop & mid century domestics (jingles & themes) (1957) the lo_s laura prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  The Hi-Lo's
                                     'tag_release'  Now Hear This
                                       'tag_title'  Laura
                                             'bpm'  135.2
                                    'search_title'  'laura':1
                                   'search_artist'  'hi':2 'hilos':5 'lo':3 's':4 'the':1
                                  'search_release'  'hear':2 'now':1 'this':3
                                     'search_rest'  '1957':12,13 'age':3 'bossa':24 'century':6 'domestics':7 'exotica':23 'jazz':20 'jb':19 'jingles':8,9 'laura':17 'lo':15 'lounge':21 'mid':5 'or':22 'pop':4 'prerock':18 's':16 'space':2 'the':14 'themes':10,11 'va':1
                                    'search_combo'  '1957':21,22 'age':12 'bossa':33 'century':15 'domestics':16 'exotica':32 'hear':8C 'hi':3B 'hilos':6B 'jazz':29 'jb':28 'jingles':17,18 'laura':1A,26 'lo':4B,24 'lounge':30 'mid':14 'now':7C 'or':31 'pop':13 'prerock':27 's':5B,25 'space':11 'the':2B,23 'themes':19,20 'this':9C 'va':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['jazz', '50s', '60s']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620539229.162813  (2021-05-09 07:47:09)
                             'size'  3609017