======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '177'
                                          'artist'  'Sidewalk Swingers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Blowin' in the Wind"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '145.476'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.476'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TIT2' (Title/songname/content description)         "Blowin' in the Wind"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sidewalk Swingers'
'TRCK' (Track number/Position in set)               '03'
'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'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                        '+1.18 dB'
'TXXX:replaygain_track_peak'                        '0.559612'

========================== row from database ==========================
                                              'id'  1497526
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Lounge/Sidewalk swingers/03. Sidewalk Swingers - Blowin_ in the Wind.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  177
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  4264640
                                           'mtime'  1620532143
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Lounge swingers 03. Blowin_ prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Sidewalk Swingers
                                     'tag_release'  None
                                       'tag_title'  Blowin' in the Wind
                                             'bpm'  145.476
                                    'search_title'  'blowin':1,2 'in':3 'the':4 'wind':5
                                   'search_artist'  'sidewalk':1 'swingers':2
                                  'search_release'  
                                     'search_rest'  '03':7,8 'blowin':9 'bossa':13 'country':4 'exotica':2 'jazz':1 'jb':11 'lounge':5 'oldies':3 'or':12 'prerock':10 'swingers':6
                                    'search_combo'  '03':14,15 'blowin':1A,2A,16 'bossa':20 'country':11 'exotica':9 'in':3A 'jazz':8 'jb':18 'lounge':12 'oldies':10 'or':19 'prerock':17 'sidewalk':6B 'swingers':7B,13 'the':4A 'wind':5A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9B
                                           '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-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620532142.621757  (2021-05-09 05:49:02)
                             'size'  4264640