======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '129'
                                          'artist'  'Sidewalk Swingers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'If I Had a Hammer'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '95.528'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '95.528'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TIT2' (Title/songname/content description)         'If I Had a Hammer'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sidewalk Swingers'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.04 dB'
'TXXX:replaygain_track_peak'                        '0.583171'

========================== row from database ==========================
                                              'id'  788648
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Lounge/Sidewalk swingers/07. Sidewalk Swingers - If I Had a Hammer.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  129
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  3114835
                                           'mtime'  1620532150
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Lounge swingers 07. prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Sidewalk Swingers
                                     'tag_release'  None
                                       'tag_title'  If I Had a Hammer
                                             'bpm'  95.528
                                    'search_title'  'a':4 'had':3 'hammer':5 'i':2 'if':1
                                   'search_artist'  'sidewalk':1 'swingers':2
                                  'search_release'  
                                     'search_rest'  '07':7,8 'bossa':12 'country':4 'exotica':2 'jazz':1 'jb':10 'lounge':5 'oldies':3 'or':11 'prerock':9 'swingers':6
                                    'search_combo'  '07':14,15 'a':4A 'bossa':19 'country':11 'exotica':9 'had':3A 'hammer':5A 'i':2A 'if':1A 'jazz':8 'jb':17 'lounge':12 'oldies':10 'or':18 'prerock':16 'sidewalk':6B 'swingers':7B,13
                                    'tag_tracknum'  7
                                      '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-2', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620532149.5497174  (2021-05-09 05:49:09)
                             'size'  3114835