======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '155'
                                          'artist'  'Russ Morgan & Mill Herth'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1948'
                                           'title'  "I'm Looking Over A Four Leaf C"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '37'
                                      'tracktotal'  ''
                                            'date'  '1948'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '128.414'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1948'
'TBPM' (BPM (beats per minute))                     '128.414'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1948'
'TIT2' (Title/songname/content description)         "I'm Looking Over A Four Leaf C"
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Russ Morgan & Mill Herth'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '37'
'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:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.49 dB'
'TXXX:replaygain_track_peak'                        '0.610691'

========================== row from database ==========================
                                              'id'  1511552
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1948/37 Russ Morgan & Mill Herth - I_m Looking Over A Four Leaf Clover.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  155
                                           'genre'  prerock-unsorted
                                        'filesize'  2485690
                                           'mtime'  1676045889
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 37 I_m Clover prerock unsorted
                                      'tag_artist'  Russ Morgan & Mill Herth
                                     'tag_release'  Billboard Top Pop Singles of 1948
                                       'tag_title'  I'm Looking Over A Four Leaf C
                                             'bpm'  128.414
                                    'search_title'  'a':6 'c':9 'four':7 'i':1 'im':3 'leaf':8 'looking':4 'm':2 'over':5
                                   'search_artist'  'herth':4 'mill':3 'morgan':2 'russ':1
                                  'search_release'  '1948':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 '37':3 'clover':6 'i':4 'm':5 'prerock':7 'top100':2 'unsorted':8
                                    'search_combo'  '00poprockelectronic':20 '1948':19C '37':22 'a':6A 'billboard':14C 'c':9A 'clover':25 'four':7A 'herth':13B 'i':1A,23 'im':3A 'leaf':8A 'looking':4A 'm':2A,24 'mill':12B 'morgan':11B 'of':18C 'over':5A 'pop':16C 'prerock':26 'russ':10B 'singles':17C 'top':15C 'top100':21 'unsorted':27
                                    'tag_tracknum'  37
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-3', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  []
                                        'tag_date'  1948
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676045889.4442933  (2023-02-10 17:18:09)
                             'size'  2485690