======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '168'
                                          'artist'  'The Stompers'
                                     'text_people'  ''
                                         'release'  "Tape No054 - Don't Send Me No Flowers (I Ain't Dead Yet)"
                                           'title'  'i Know'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', '60s', 'garage rock', 'taiwan reference', 'rockabilly']"
                                     'discogstags'  "['beat', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '143.4'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM::\x00\x01\x00'                                'http://garagetapes.blogspot.com/'
'TALB' (Album/Movie/Show title)                     "Tape No054 - Don't Send Me No Flowers (I Ain't Dead Yet)"
'TBPM' (BPM (beats per minute))                     '143.4'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'i Know'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Stompers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '07'
'TXXX:COUNTRY'                                      'US'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['beat', 'pop', 'rock']
'TXXX:lastfmtags'                                   ['rock and roll', '60s', 'garage rock', 'taiwan reference', 'rockabilly']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+21.95 dB'
'TXXX:replaygain_track_peak'                        '0.024556'
'TXXX:tracknum'                                     '07'

========================== row from database ==========================
                                              'id'  499025
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT054/07 - The Stompers - i Know (1965 US).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  168
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  4053987
                                           'mtime'  1620383215
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT054 07 (1965 US) rock gr garage;set pl garagetapes
                                      'tag_artist'  The Stompers
                                     'tag_release'  Tape No054 - Don't Send Me No Flowers (I Ain't Dead Yet)
                                       'tag_title'  i Know
                                             'bpm'  143.4
                                    'search_title'  'i':1 'know':2
                                   'search_artist'  'stompers':2 'the':1
                                  'search_release'  'ain':12 'aint':14 'dead':15 'don':3 'dont':5 'flowers':9 'i':10,11 'me':7 'no':8 'no054':2 'send':6 't':4,13 'tape':1 'yet':16,17
                                     'search_rest'  '1965':6,7 'blogspot':2 'com':3 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt054':5 'pl':16 'rock':10 'set':13,15 'us':8,9
                                    'search_combo'  '1965':27,28 'ain':16C 'aint':18C 'blogspot':23 'com':24 'dead':19C 'don':7C 'dont':9C 'flowers':13C 'garage':33,35 'garagetapes':22,38 'garagetapesblogspotcom':25 'gr':32 'gt054':26 'i':1A,14C,15C 'know':2A 'me':11C 'no':12C 'no054':6C 'pl':37 'rock':31 'send':10C 'set':34,36 'stompers':4B 't':8C,17C 'tape':5C 'the':3B 'us':29,30 'yet':20C,21C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', '60s', 'garage rock', 'taiwan reference', 'rockabilly']
                                        'tag_date'  1965
                                     'discogstags'  ['beat', 'pop', 'rock']

============================== file details ==============================
                                           'mtime'  1620383214.5961459  (2021-05-07 12:26:54)
                             'size'  4053987