======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '212'
                                          'artist'  'Tommy Dorsey'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Just As Though You Were Here (Frank Sinatra & Pied Pipers)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['big bands of the 30s and 40s', 'jazz', 'big band', '40s', 'swing', "
 "'trombone']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1942'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '143.925'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '143.925'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1942'
'TIT2' (Title/songname/content description)         'Just As Though You Were Here (Frank Sinatra & Pied Pipers)'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tommy Dorsey'
'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:lastfmtags'                                   ['big bands of the 30s and 40s', 'jazz', 'big band', '40s', 'swing', 'trombone']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.00 dB'
'TXXX:replaygain_track_peak'                        '0.451603'

========================== row from database ==========================
                                              'id'  1452634
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1942/Tommy Dorsey - Just As Though You Were Here (Frank Sinatra & Pied Pipers) 6-8-1942.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  212
                                           'genre'  prerock-band
                                        'filesize'  4261554
                                           'mtime'  1620561038
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1942 6 8 1942 prerock band
                                      'tag_artist'  Tommy Dorsey
                                     'tag_release'  None
                                       'tag_title'  Just As Though You Were Here (Frank Sinatra & Pied Pipers)
                                             'bpm'  143.925
                                    'search_title'  'as':2 'frank':7,8 'here':6 'just':1 'pied':10 'pipers':11,12 'sinatra':9 'though':3 'were':5 'you':4
                                   'search_artist'  'dorsey':2 'tommy':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1942':6 '6':7 '8':8 'band':10 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9
                                    'search_combo'  '00oldiepop':19 '1942':20 '6':21 '8':22 'as':2A 'band':24 'country':18 'dorsey':14B 'exotica':16 'frank':7A,8A 'here':6A 'jazz':15 'just':1A 'oldies':17 'pied':10A 'pipers':11A,12A 'prerock':23 'sinatra':9A 'though':3A 'tommy':13B 'were':5A 'you':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['big bands of the 30s and 40s', 'jazz', 'big band', '40s', 'swing', 'trombone']
                                        'tag_date'  1942
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561038.1206563  (2021-05-09 13:50:38)
                             'size'  4261554