======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '171'
                                          'artist'  'Roger Williams'
                                     'text_people'  ''
                                         'release'  'KAPP 210'
                                           'title'  'Arrivederci, Roma'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-4']")
                                      'lastfmtags'  "['instrumental', 'piano', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-instrumental'
                                             'bpm'  '145.895'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-338 POS 55'
'COMM:ID3v1 Comment:XXX'                            '58-338 POS 55'
'TALB' (Album/Movie/Show title)                     'KAPP 210'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 'prerock-instrumental'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Arrivederci, Roma'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Roger Williams'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'piano', 'easy listening']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.31 dB'
'TXXX:replaygain_track_peak'                        '0.418548'

========================== row from database ==========================
                                              'id'  1442605
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-338 - Roger Williams - Arrivederci, Roma.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  171
                                           'genre'  prerock-instrumental
                                        'filesize'  6852357
                                           'mtime'  1621705418
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 338 prerock instrumental
                                      'tag_artist'  Roger Williams
                                     'tag_release'  KAPP 210
                                       'tag_title'  Arrivederci, Roma
                                             'bpm'  145.895
                                    'search_title'  'arrivederci':1,2 'roma':3
                                   'search_artist'  'roger':1 'williams':2
                                  'search_release'  '210':2 'kapp':1
                                     'search_rest'  '00oldiepop':5 '1958':6 '338':8 '58':7 'country':4 'exotica':2 'instrumental':10 'jazz':1 'oldies':3 'prerock':9
                                    'search_combo'  '00oldiepop':12 '1958':13 '210':7C '338':15 '58':14 'arrivederci':1A,2A 'country':11 'exotica':9 'instrumental':17 'jazz':8 'kapp':6C 'oldies':10 'prerock':16 'roger':4B 'roma':3A 'williams':5B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'piano', 'easy listening']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705417.9887545  (2021-05-22 19:43:37)
                             'size'  6852357