======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '185'
                                          'artist'  'Green River JB'
                                     'text_people'  ''
                                         'release'  'Green River JB'
                                           'title'  'Lonesome railroad'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-3', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-4', 'q-piano-1', 'q-vocals-2', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-3', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-dixiestyle'
                                             'bpm'  '145.4'
                                             'key'  'A m'  (8A)
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Green River JB'
'TBPM' (BPM (beats per minute))                     '145.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-dixiestyle'
'TENC' (Encoded by)                                 'iTunes v4.6.0.15'
'TIT2' (Title/songname/content description)         'Lonesome railroad'
'TKEY' (Initial key)                                'A m'
'TPE1' (Lead performer(s)/Soloist(s))               'Green River JB'
'TPE2' (Band/orchestra/accompaniment)               'Green River JB'
'TXXX:MusicMagic Data'                              'AQEBWl1ygo2gVK4GgwA+6EkdmjaBQYB1GrunQz+2gVXcF4ABgAEsabH0gEn/WYABgueAAcIt2r7Ulr22gAHOjByo8b2AAanugAKAAQ=='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.61 dB'
'TXXX:replaygain_track_peak'                        '0.699444'

========================== row from database ==========================
                                              'id'  1495242
                                            'path'  /data/Music/Other/Pa/Dixieland/Green River JB/Lonesome railroad.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  185
                                           'genre'  prerock-jb-jazz-dixiestyle
                                        'filesize'  3724198
                                           'mtime'  1621094199
                                   'redo_metaread'  0
                                        'rest_str'   Pa Dixieland prerock jb jazz dixiestyle
                                      'tag_artist'  Green River JB
                                     'tag_release'  Green River JB
                                       'tag_title'  Lonesome railroad
                                             'bpm'  145.4
                                    'search_title'  'lonesome':1 'railroad':2
                                   'search_artist'  'green':1 'jb':3 'river':2
                                  'search_release'  'green':1 'jb':3 'river':2
                                     'search_rest'  'dixieland':2 'dixiestyle':6 'jazz':5 'jb':4 'pa':1 'prerock':3
                                    'search_combo'  'dixieland':10 'dixiestyle':14 'green':3B,6C 'jazz':13 'jb':5B,8C,12 'lonesome':1A 'pa':9 'prerock':11 'railroad':2A 'river':4B,7C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  A m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-3', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094199.2730136  (2021-05-15 17:56:39)
                             'size'  3724198