======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '269'
                                          'artist'  'US3'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Cantaloop (1994)'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['jazz', 'acid jazz', 'electronic', 'hip hop', 'funk']"
                                     'discogstags'  "['jazz', 'hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '116.120'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '116.120'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Cantaloop (1994)'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'US3'
'TRCK' (Track number/Position in set)               '0'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'hip hop']
'TXXX:lastfmtags'                                   ['jazz', 'acid jazz', 'electronic', 'hip hop', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.03 dB'
'TXXX:replaygain_track_peak'                        '0.639691'
'TXXX:tracknum'                                     '124'

========================== row from database ==========================
                                              'id'  1346595
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/124 - US3 - Cantaloop (1994).mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  269
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  3779588
                                           'mtime'  1620566610
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 124 electronic generic or radio unsorted
                                      'tag_artist'  US3
                                     'tag_release'  None
                                       'tag_title'  Cantaloop (1994)
                                             'bpm'  116.12
                                    'search_title'  '1994':2,3 'cantaloop':1
                                   'search_artist'  'us3':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '124':3 '90s':2 'electronic':4 'generic':5 'or':6 'radio':7 'unsorted':8
                                    'search_combo'  '00poprockelectronic':5 '124':7 '1994':2A,3A '90s':6 'cantaloop':1A 'electronic':8 'generic':9 'or':10 'radio':11 'unsorted':12 'us3':4B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'acid jazz', 'electronic', 'hip hop', 'funk']
                                        'tag_date'  1995
                                     'discogstags'  ['jazz', 'hip hop']

============================== file details ==============================
                                           'mtime'  1620566610.333738  (2021-05-09 15:23:30)
                             'size'  3779588