======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '252'
                                          'artist'  'Edison Diamond Disc 50258-R'
                                     'text_people'  ''
                                         'release'  'Popular Songs, Tin Pan Alley'
                                           'title'  'Moonlight Bay'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1915'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '115.130'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Popular Songs, Tin Pan Alley'
'TBPM' (BPM (beats per minute))                     '115.130'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1915'
'TIT2' (Title/songname/content description)         'Moonlight Bay'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Classic Recordings'
'TPE2' (Band/orchestra/accompaniment)               'Edison Diamond Disc 50258-R'
'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'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.24 dB'
'TXXX:replaygain_track_peak'                        '0.589535'

========================== row from database ==========================
                                              'id'  1120696
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Popular Songs, Tin Pan Alley/Classic Recordings - Moonlight Bay.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  252
                                           'genre'  prerock-unsorted
                                        'filesize'  3034467
                                           'mtime'  1621698439
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Classic Recordings prerock unsorted
                                      'tag_artist'  Edison Diamond Disc 50258-R
                                     'tag_release'  Popular Songs, Tin Pan Alley
                                       'tag_title'  Moonlight Bay
                                             'bpm'  115.13
                                    'search_title'  'bay':2 'moonlight':1
                                   'search_artist'  '50258':4 '50258r':6 'diamond':2 'disc':3 'edison':1 'r':5
                                  'search_release'  'alley':6 'pan':5 'popular':1 'songs':2,3 'tin':4
                                     'search_rest'  'classic':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'recordings':6 'unsorted':8
                                    'search_combo'  '50258':6B '50258r':8B 'alley':14C 'bay':2A 'classic':19 'country':18 'diamond':4B 'disc':5B 'edison':3B 'exotica':16 'jazz':15 'moonlight':1A 'oldies':17 'pan':13C 'popular':9C 'prerock':21 'r':7B 'recordings':20 'songs':10C,11C 'tin':12C 'unsorted':22
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1915
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698438.613877  (2021-05-22 17:47:18)
                             'size'  3034467